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 A foil-wrapped pack containing 10 Dryrod Damp-Proofing Rodsdryzone damp proofing cream screwfix Our business hours are

One Dryzone 310 Cartridge covers roughly 1. A salt and damp resistant adhesive glue for fixing plasterboard directly to masonry surfaces. Damp Proofing Cream. 81 Select options; Damp Proofing Injection Fluid Low Odour (POAS) £ 81. The Dryzone cream is injected into holes drilled with a simple applicator gun into the mortar course. Plaster is removed from the bottom of the walls up to a height of 1. 2m. tax) each (save 3 %) £99. Follow the general guidelines freely available on the net:- hack off plaster to 1200mm or 300mm above highest sign of. The Dryzone System is a complete rising damp renovation range. Their unique 100% active ingredient formulation allows the original DPC holes to be used for retreatment, something that traditional damp-proofing creams can not be used for. In reply to gethin_allen:Dryrod® Damp-Proofing Rods will typically cure to form a damp proof course over a period of 1 month. Make sure the underfloor membrane is above floor level . 00 Excl. 4. It is not possible to infuse 100% pure active ingredient into a traditional Damp-Proofing Cream. It is introduced along the mortar course at regular intervals by injecting it into pre-drilled holes. Dryzone Damp-Proofing Cream revolutionised the treatment of rising damp when it was launched in 2000. The cream is inserted into. Tax: £10. The Dryzone then diffuses before curing to form a continuous water repellent barrier. Preparation Insert a Dryzone cartridge into the applicator gun, ensuring the pressure piston is fully extended. The new Dryzone System lets you install ordinary plasterboard directly over damp and salt contaminated walls by first priming the wall with Dryshield Cream and then using Drygrip Adhesive to bond the plasterboard to the wall. 99. Masonry cream is snake oil, it does nothing. They have also been approved by the British Board of Agrement and the German WTA organization. Safeguard was established in 1983 to produce products for the refurbishment of existing buildings. Stormdry XR Mortar is ideal for repairing cracks, damaged pointing or holes in walls up to 15 mm in width. £. Stormdry MAX Enhanced Waterproofing Barrier is a water-resistant, anti-graffiti coating for brick, masonry, concrete &. Raincheck WaterSeal (5 L) Raincheck LS (25 L) Dryzone Anti-Mould Paint. Once injected, the cream diffuses along the mortar course before curing to form a breathable water-repellent resin – preventing dampness from rising up the wall. 0 out of 5 stars You will need a different gun for this I purchase the gun from screwfix. It was proven to dry wet walls and keep water ingress at bay. No Waiting, No Spillage, No electric Pumps or specialist equipment required. REQUEST TO REMOVE DRYZONE 100(Black) WATERPROOF BACKPACKDryrod® Damp-Proofing Rods will typically cure to form a damp proof course over a period of 1 month. The water-repellent material diffuses deeply into the damp masonry, curing to form a highly effective barrier to damp. 1st March 2019 Dryzone®100 Mould Killer Spray is the solution to unsightly mould growth in bathrooms, kitchens and interior walls. 53 Linear Metres for a 9" thick wall Dryzone Anti-Mould Additive is a highly-effective anti-mould additive liquid that utilises the technology of Dryzone Mould-Resistant Emulsion Paint. Download Dampcheck Plus product datasheet. Stop rising damp by utilising a silicone cream. Make sure there is a 25 mm gap. Cream or Dryrod Damp-Proofing Rods. com. Inject cream from the bottom of the hole outwards until the hole is full. A cutting tool to cut rods to size for walls thinner than 9" thickness. Rising damp treatment and replastering can now be completed in just 24 hours. The removal of all moisture sources. Dryzone is a revolutionary new material for the control of rising damp. The Dryzone System combines the power of our patented Dryzone damp-proofing cream with a modern fast-track replastering system. Dryzone Damp-Proofing Cream BBA & WTA approved, High Strength DPC Most rigorously tested DPC cream on the market Tested on wide. . 18+, T&C apply, Credit subject to status. co. co. The Dryzone then diffuses before curing to form a continuous water-repellent barrier. Full. BBA Certificate. 12 months. Click & Collect in as little as a minute. Proceed with the application of Dryzone Damp-Proofing Cream or Dryrod Damp-Proofing Rods as per normal. Suitable for use on salt and damp. BBA & WTA Approved. 3 for £13. The layer of applied Dryshield should be left to penetrate into the wall surface for at least 30 minutes, before any. As mentioned, check out all other relevant conditions - search for info here and DIYNOT. Mixing. Identification: Overview of how to correctly identify the different types of dampness and typical. Dryzone Plasterboard Positioning Plugs: 50 mm × 5. (5 Reviews) £40. It includes the damp proof creams for injecting, a mastic gun to inject the cream, and a drill bit to drill the correct size holes. Dryzone Damp-Proofing Cream (600 ml) WTA-approved for the treatment of rising damp in highly saturated walls (up to 95% saturation) Dryzone damp-proofing cream is our most effective treatment for rising damp. Your Cart. Fixes plasterboard to walls without the need for battens or screws. Drill holes,fill with cream. It is introduced along the mortar course at regular intervals by injecting it into pre-drilled holes. 3. 16. Dryzone has been used in high profile settings such as. Dryzone can sometimes spread through wet plaster. Raincheck LS 5L. Starting at: £13. Knowledge. Once cured, the resultant surface is hydrophobic and is ideal for. Dryzone Damp-Proofing Cream. The original damp proofing cream. Dryzone System - Rising Damp. Description. It allows users to impart paints, wallpaper pastes and tile grouts with mould-resistant properties. Easy, Fast, Clean and Effective Damp Proofing Cream– Packed in 310 cartridges for easy use, Dryzone is a versatile DPC cream that can be used for small DIY projects to large damp proofing jobs. This negates the need to drill new holes along a separate mortar line. (2)This Dryzone damp course injection is a full kit. WTA (Germany) approved for use as a rising damp treatment in highly saturated walls (up to 95%). Dampcheck Plus (25 L) Stormdry Masonry Protection Cream. Generally re-pointing a stone wall is the better option, using a traditinal lime mortar. Dryzone Mould-Resistant Sealant is a premium sanitary-grade silicone joint sealer designed to resist the growth of mould, even in environments with persistent condensation,. CERTIFICATE 97/3363. 5. BBA Damp Proof Membrane Handi-Pak Black 3m x 4m (300mu). Cut into the end of the cartridge so that cream will be able to flow freely. Eradicates rising damp permanantly. com. 1. The Dryzone System is as effective as a sand:cement render but cleaner, quicker and less expensive to install per. 49 incl. Make sure any holes and cracks are filled with cream and that all areas are. The patented Dryzone System now outsells our traditional chemical injection damp-proofing. We stock Oldroyd, Delta, John Newton and Restoration UK membranes, plus the sealing tapes. Inject it from the inner rubble outwards . Due to its high-strength cream formulation it is able to penetrate much more deeply than standard waterseal products, resulting in a. View Full Range. 4. Dryzone DPC Cream 310ml Clear ★★★★★ ★★★★★ £19. 49 incl. Consumption rate - 115mm wall* 3. For technical advice and sales. Kiesol C is the highest strength damp proofing cream in the world with an active ingredient (silane) level of 80% which is more than any other damp proofing cream on the market. Easy, Fast, Clean and Effective Damp Proofing – Packed in 310 cartridges for easy use, Dryzone is a versatile DPC cream that can be used for small DIY projects to large damp. Dryrod Damp-Proofing Rods are the next generation treatment for rising damp. Apply Drybase: treat remaining damp Apply two coats of Drybase liquid-applied DPM to the lower portion of the wall below the Dryzone insertion line. Once the Dryzone is installed, it diffuses to where it is most needed before curing to form a water-repellent resin. to South Africa. Dryzone Damp-Proofing Cream: This is a patented high-strength silicone-based cream that is injected into holes drilled at regular intervals along a mortar course. The layer of applied Dryshield should be left to penetrate into the wall surface for at least 30 minutes, before any. 12 months in unopened pack. Click & Collect. A construction essential. 4. Call: 01403 210204. It allows users to impart paints, wallpaper pastes and tile grouts with mould-resistant properties. SoluGuard Wood Preservative Range. Apply Scratch CoatThe Dry Zone cream is injected into the mortar joints at 120mm centres, forming a chemical damp proof barrier to prevent moisture rising in the brickwork where there is no damp proof course or where an existing damp proof course has failed. Our costs are ballpark averages –. Safeguard Europe Ltd is a UK-based company specialising in providing damp-proofing and waterproofing. The water-repellent active ingredient in the cream diffuses along that mortar course before curing to form a barrier to damp. . Drygrip is also an effective general use adhesive. £2450 (£79. A high-quality SDS masonry drill bit that is the correct size for Dryrod Damp-Proofing Rods. Reviewed in the United Kingdom on 4 May 2021. Permagard – DPC Injection Cream Suppliers. The highly-effective biocidal cleaning spray has just been released by damp-proofing and waterproofing experts Safeguard Europe. Drills 12mm diameter holes for filling with Dryzone damp-proofing cream or inserting DryRod damp-proofing rods. Visqueen Urban Drainage Geomembrane Double Sided Tape 50mm x 10m. 4 Caution. It contains everything the user requires to deal with mould problems, even in areas with high levels of condensation. Brand : dryzone. Stormdry Repointing Additives. Inject the cream into the boreholes using a low pressure sprayer or cartridge gun. Inject it from the inner rubble outwards . g. Dryzone Damp-Proofing Cream: This is a patented high-strength silicone-based cream that is injected into holes drilled at regular intervals along a mortar course. Model: 600 Verified Purchase. This prevents the damp from rising up the wall. The Dryshield Cream is a breathable, salt-resistant and water-repellent cream that acts as a primer for Drygrip Adhesive. Always ensure that the cavity is clear before treatment. Report. Full. 4. Dryrod Damp Proof Course Rods - 180mm Pack of 10. Dryzone Damp-Proofing Cream is the industry standard for remedial rising damp treatments. 24 ( £97. Dryzone DPC Cream 310ml Clear ★★★★★ ★★★★★ £19. 1 x 12mm x 300mm SDS Drill Bit. Dryrod Damp Proofing Rods DPC Kit: Treats 24 Linear metres (9" Wall) - BBA Approved Rising Damp Treatment. This Kiesol C DPC injection cream kit will cover approximately 30 linear metres of 100mm (4. Injection is the answer, finished as explained by Big Jumbo. Proven to work on the wettest walls (even up to 95% saturation) — Independent testing prove that the Dryrod system outperforms even our premium damp-proofing cream at high saturation levels. Otherwise, the render will bridge the damp proof course. The UK’s leading retailer of trade tools and hardware. 5 x 20m. 83. Raincheck WaterSeal (5 L) Raincheck LS (25 L) Dryzone Anti-Mould Paint. Dryzone Drill Bit - 12mm x 300mm SDS Masonry Drill Bit for Damp Proofing, DPC, Dryzone, DryRod. Dryzone Cream surpassed the pass requirement of the standards set by these German regulations. Apply the first coat of Dryzone plaster as a rough coat at approximately 5 – 10 mm thickness. The Stormdry System. However 150mm above the outside ground level is often recommended to minimise the possibility of bridging or rain splash getting the wall damp above the DPC level. Since the 1950s, liquid chemical injection systems. The paint is quick drying, fully washable once cured and compatible for overpainting on all known paint finishes. Apply the Plaster Coat Once the rough coat has become firm, apply the plaster again with a thickness of at least 15 mm - 20 mm. BBA & WTA Approved. At any Safeguard training course, we explain the causes of dampness or moisture ingress and outline the reasons behind the various. SikaTop® Seal-107. The 300mm depth allows walls of up to 9-inches thick to be comfortably drilled. The Drybase® Liquid is applied to damp proof membrane as a single pack barrier coating for above ground use. 12benny, Apr 1, 2009. Permagard stock a wide range of injection creams as well as damp proof injection kits to suit different situations. 6. BBA approved. Apply. Drybase Range - Damp-proof Coatings. Damp proofing membranes protect different parts of a structure from damage arising from damp, including mould and mildew, and the risk of rotten timber. I personally had this system injected about 2 years ago and it appears to be working well. Delivery Next day available. 99 Excl. £10. Faster than sand:cement. Kit contains: 4 x Dryzone 310ml DPC Cream, 1 x Dryzone System Hole Clearing Tool, 1 x Dryzone Applicator Gun (310ml Cartridges), 1 x Dryzone Drill Bit (12mm x 300mm), 1 x Stormdry XR Mortar. 4. For internal and external use. DPC Cream was developed and engineered by German. Dryzone Damp-Proofing Cream. Stormdry MAX . As effective as sand:cement render, but faster and cleaner. The silane then lines the capillaries in the substrate to create a water repellent barrier. 99 £ 87 . Founded in Saanichton in 1990, Reliable Foundation Spray has provided environmentally sound damp and water proofing for new and redone foundations in Greater Victoria and. 00 New Stock Arriving in 6 – 7 days Buy Now DryRod 50 Rod. The membrane is a 1. Drybase BBA Tanking Slurry - 25kg. Once the rough coat is sufficiently firm, apply the second coat of Dryzone plaster at. (a) PROPOSED POSITION OF THE TECH-DRY DPC: Where possible, TECH-DRY reinstates the new DPC in the existing Damp Course, or in the first mortar course above floor level. ·The source of the dampness can also be elusive and experience with many different building layouts and buildings in certain locations is required to assist in making decisions in this regard. Dryzone® Cream will typically cure to form a damp proof course over a period of 1 month. Damp can affect both domestic and commercial properties and is often costly to rectify, so proper prevention is key. Damp proof cream is able to penetrate deep into brick walls to create a chemical barrier that will stop moisture rising. Description. The courses are performed by our qualified and highly experienced technical staff. Apply the Plaster Coat Once the rough coat has become firm, apply the plaster again with a thickness of at least 15 mm - 20 mm. BBA approved. Dampcheck Plus (25 L) Stormdry Masonry Protection Cream. Drygrip Adhesive is a salt and damp resistant glue for the purpose of fixing plasterboard directly to masonry surfaces. Dryzone is a special damp proofing cream that is introduced along the mortar course at regular intervals by injecting it into pre-drilled holes. Dryzone Damp-Proofing Cream and Dryrod Damp-Proofing Rods can be installed to form a chemical DPC, which will form an extremely effective barrier to. sales@permagard. Dryzone Damp Proofing Cream Kit (Pack of 3 DPC Cream + Cox Mastic Gun & Drill Bit) High-Strength, BBA & WTA Approved Rising Damp Treatment 4. 81 per 100ML. A hard-wearing and stain-resistant floor coating that is supplied as a two-part water-dispersed epoxy resin. Dryzone Damp Proofing Injection Cream in the larger 600ml tube size gets the job done fast and economically. Dryzone Damp Proofing Cream (DPC) - 310 x (5Pack) - High-Strength Injection Cream for Rising Damp Treatment. RIBA-Approved CPD Seminars. Tested on wide range of substrates. Raincheck WaterSeal (5 L) Raincheck LS (25 L) Dryzone Anti-Mould Paint. Before that I used the Dryzone cream. The applied product is typically touch-dry in one hour. Dryzone Damp-Proofing Cream is the industry standard for remedial rising damp treatments. Made from recycled materials. This is a damp proofing product that stops future rising damp in its tracks. 8m / tube of DPC cream. Suitable for use on salt and damp contaminated walls and provides enhanced saltDryzone Anti-Mould Sealant 310ml. Shop Dryzone Damp Proofing Cream - DPC Rising Damp - 600ml (1 x 600ml) online at best prices at desertcart - the best international shopping platform in South Africa. 4½″ (115 mm) 9″ (230 mm) 13½″ (345 mm) 18″ (460 mm) Depth of Drill Hole: 95 mm: 210 mm: 325 mm:In all cases the new damp proof course should, as far as practically possible, be installed in accordance with the British Standard Code of Practice for the “Code of practice for diagnosis of rising damp in walls of buildings and installation of chemical damp-proof courses” BS 6576. Once the Dryzone is installed, it diffuses to where it is most needed before curing to form a water-repellent resin. The method of application for treating chimney damp using the Dryzone Express Replastering System is as follows: Deal with underlying cause of chimney damp – e. To date over 2 million tubes of Dryzone have been sold, enough to successfully treat rising damp in over 13 million metres of 41/ 2˝ wall. Make sure the underfloor membrane is above floor level . Damp Proofing. Damp-proof replastering options are available to prevent plastering damage should dampness reoccur. Available in 380ml Cartridges, 1 Litre Cartridges, 5 Litre Buckets and 8 Litre 'Bag-in-a-Box'. Read more. 1 The product is manufactured by controlled batch-blending process. I assume that the wall is rubble filled and, if that is the case, the reason for the damp is probably the accumulation of fine particles at ground level, allowing damp to travel through. 5. How customer. If you want to do it properly, you need to inject into mortar. After injection Dryzone cures to form a new chemical damp course. The plaster is used as part of the Dryzone System for replastering after Dryzone Damp-Proofing Cream or Dryrod Damp-Proofing Rods have been used to create a remedial damp-proof course. It comes packaged in a 310 ml mastic cartridge and is designed for direct application to walls via mastic gun. Dryrod Damp-Proofing Rods are the next generation treatment for rising damp. In this video, John explains why we use damp proofing rods. Made from recycled materials. Damp Proofing Cream - 310ml cartridge. Dampcheck Plus is non-flammable and is silane modified - allowing for. 99 £ 53 . FREE Delivery Across. Holes can be capped with mortar or fitted with a plastic plug. Some white surface stain may occur around the. No Waiting, No Spillage, No electric Pumps or. Dryzone Cream surpassed the pass requirement of the standards set by these German regulations. Diffuses within the damp wall forming a. Stormdry System - Penetrating Damp. This involved the screening and testing of hundreds of potential formulations. For more information call302 244 0179. • Adds mould-resistance to paints • Compatible with all types of paint • Lasts for at least 5 years • Compatible with all paint finishes • Easy to use and cost effectiveDryzone® Anti Mould Additive adds mould-resistance to gloss paints, wallpaper. £10. WORLD’S LEADING RISING DAMP SOLUTIONS sold in 13 countries worldwide Holder of the internationally acclaimed British Board of Agrément (BBA) certification LEARN MORE DryRod Dryzone Dampbusters DIY/Shop DryRod 10 Rod Packwill treat 2. Their sales people are very helpful. This prevents the damp from rising up the wall. The high performance formulation of Dryzone Damp-Proofing Cream is trusted by professional installers around the world. Find helpful customer reviews and review ratings for Dryrod Damp Proofing Rods (10 Pack) - BBA-Approved Rising Damp Treatment, Stronger Than DPC Injection Creams. DPC Cream have a consistency that allows the active ingredient, silane, to be absorbed. It is specifically formulated to work on walls treated with Dryzone Damp-Proofing Cream and Dryshield Cream. This training course provides attendees with an understanding of the causes, symptoms and solutions to the most common damp problems. Description. The cream is introduced along the mortar course of a wall by injecting into pre-drilled holes in the mortar. Squeeze the gun trigger and back-fill the hole to within one centimetre of the surface. 60 per L. Dryzone is a special damp-proofing cream that is introduced along the mortar course at regular intervals by injecting it into pre-drilled holes. yshield Cream: prime. Buy from Amazon. They are inserted into 12mm holes drilled along the mortar course. £23. It protects wood from the undesirable effects of moisture, which can result in a degraded appearance, warping and moss / algae growth. The original damp proofing cream: we launched Dryzone at safeguard Europe in 2000 as a new alternative to traditional, messy rising damp treatment methods that used liquid injection. 0. To date over 2 million tubes of Dryzone have been sold, enough to successfully treat rising damp in over 13 million metres of 41/2” wall. Colour: Black. If it is only a small Area, a 10 Pack is about £20. Read honest and unbiased. Raincheck LS 5L. £112. Stops rising damp; Spillage and mess virtually eliminated;The introduction of the patented Dryzone damp-proofing cream has revolutionised the treatment of Rising Damp. Dryzone is a. Certificate 97/3363. €12. Call: 01403 210204. The active ingredient contained within the rods spreads through, and bonds with, sand;cement mortar. Effectiveness of chemical damp-proof courses 10 Preparation for Dryzone damp-proof course installation 11 The drilling programme 12 Dryzone injection process and making good 13 Health and safety 17. (89 Reviews) 8 for £81. The Stormdry. It includes the damp proof creams for injecting, a mastic gun to inject the cream, and a drill bit to drill the correct size holes. if you are injected on the internal wall. 00!! rob2510, Jan 4,. Drybase Liquid-Applied DPM provides a barrier to damp and ground gases (including radon, carbon. The injection of a Damp Proof Cream is a highly effective and straightforward solution to treat rising damp in masonry substrates. Drilling Solid Walls. 3. Certificate 18/5549. 6 Best Dryzone Cream Screwfix In the UK Last Updated - 21/11/2023 Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer. Tax: £16. Add to trolley. Full application instructions for all Dryzone Renovation Plaster variants can be found in the downloads tab. Find helpful customer reviews and review ratings for Dryzone Damp Proofing Cream - DPC Rising Damp Treatment (5x600ml) at Amazon. A watertight low-profile sheet membrane for protection against dampness in walls without the need to drill and install plugs. 5 mm Dryzone System Drill Bit can be used to drill the holes for these plugs. Once installed, the high strength formulation spreads along the mortar bed before curing to form a damp-proof course. 99Bestseller Bestsellers, Damp Proofing Dryzone £ 468. Safeguard was established in 1983 to produce products for the refurbishment of existing buildings. The Dryzone then diffuses before curing to form a continuous water-repellent barrier. Dryzone System Damp-Proofing Range. Bricks and mortar can be very porous and contain many fine capillaries, through which water can rise. Low Trade Prices. Available in 600ml foil wrapped cartridge, 310ml mastic. Dampcheck Plus (25 L) Stormdry Masonry Protection Cream. Drygrip is also an effective general use adhesive. The introduction of the patented Dryzone damp-proofing cream has revolutionised the treatment of Rising Damp. Submit an Enquiry. Find helpful customer reviews and review ratings for Dryzone Damp Proofing Cream (DPC) - 310ml - High-Strength Injection Cream for Rising Damp Treatment. 1. £750 - £3,000. Treatment requires the total removal of affected wood. The three key steps in the Dryzone System: FAST, HIGH PERFORMANCE RISING DAMPRoxil Protection Cream provides maximum waterproofing protection in brushable form. Once the rough coat is sufficiently firm, apply the second coat of Dryzone plaster at. Drybase Liquid-Applied DPM is water-based and can be applied to damp substrates by brush, roller, or spray. They are used to set the air gap between the board and the wall before the Dryzone Adhesive cures. £4. As effective as sand:cement. This is because rising damp can reach a height of up to approx 1. Read honest and unbiased product reviews from our users. Dryzone Damp-proofing Cream X5. Dampcheck Plus (25 L) Stormdry Masonry Protection Cream. 1 x Economy DPC injection Unit with lance. Perfect 12mm holes Clears debris from Maximises amount of damp-proofing cream that can be inserted Makes inserting Dryrods easier For walls up to 9-inches thick Metal constructionDryzone Damp-Proofing Cream. Treat the rising damp using Dryrod Damp-Proofing Rods. Flexible, Waterproof and Protective Slurry Mortar. Apply the first coat of Dryzone plaster as a rough coat at approximately 5 – 10 mm thickness. Dryzone 310ml DPC Kit Standard Wall - 6 Linear Metres. Click & Collect. BBA & WTA Approved. NBS Clauses. DPC Cream was developed and engineered by German. They have also been approved by the British Board of Agrement and the German WTA organization. This can result in visible damp patches, salt-contamination and crumbling plaster on interior walls. They have also been approved by the British Board of Agrement and the German WTA organization. Due to it’s High-Strength formulation Dryzone performs even in highly saturated walls, up to 95%. It is important to thoroughly examine walls and fix leaking gutters, cracks in. Padai New Member. In 2000, Safeguard Europe pioneered. Permagard stock a wide range of injection creams as well as damp proof injection kits to suit different situations. Dampcheck Plus (25 L) Dampcheck Plus is a BBA-approved DPC fluid that is supplied ready for use. Click and Collect in as little as 1 minute. 00 Add to basket; Damp Proofing, Featured Dryzone Gun £ 103. Dryzone Second Generation Renovation Plasters. Roxil Landscaping Range. Buy great products from our Water & Damp Proofing Category online at Wickes. Dryzone Damp-Proofing Cream. ★★★★★ ★★★★★ ( 3 ) Product code: 47327. com. Certificate 18/5549. RIBA-Approved CPD Seminars. Install Damp-proof Course Install the new damp-proof course using either Dryzone Damp-Proofing Cream or Dryrod Damp-Proofing Rods. Ideally it should be injected at internal ground floor level and the render should start above that. Drill 10mm hrizontal holes 120 mm apart .