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Product Data Sheet
Fibrecryl
Acrylic Waterproofing Membrane Incorporating Reinforcing Micro-Fibres |
Description
Fibrecryl is a durable, high build, water based, flexible, UV resistant, acrylic water based waterproofing membrane incorporating micro-fibres which provide an internal and integrated reinforcing mesh. When cured it provides a seamless, aesthetically pleasing coating which exhibits excellent water ponding resistance, flexibility, low dirt
pick-up.
Fibrecryl can withstand moderate broad form foot wear traffic.
Given that Fibrecryl is internally reinforced, no additional reinforcing fabric is required provided that corners and joins are filled with a suitable flexible polyurethane sealant and either Duram Leak-Seal Tape or bond breaker tapes are laid over joins prior to the application of Fibrecryl. It is a complete protective waterproof barrier coating for severe weather conditions, wind driven rain, salt spray and UV exposure.
Uses
Fibrecryl is formulated as a UV resistant, decorative, high build, elastomeric roof waterproofing membrane to provide long term waterproofing protection for:
» Roofs (Flat, metal or tiled).
» Walls, facades and parapets.
» Plant room floor.
Suitable Surfaces
Fibrecryl can be used over a wide range of properly prepared and primed substrates:
• Concrete, cement, cement render, block work, brick, timber, FC & CFC Sheeting, blue board, plaster board and metal.
Specification
The information contained in this product data sheet is typical but does not constitute a full specification as conditions and specific requirements may vary from project to project. The instructions should be considered as a minimum requirement but the applicator or contractor must use their skill, knowledge and experience to carry out additional works as may be necessary to meet the requirements of the project. Specification for specific projects should be sought from the Company in writing.
Limitations
The membrane should not be subject to high pressure point loads and should be protected against cutting, sharp points, scuffing and scraping.
The membrane is not intended for permanent or long term immersion in water.
Benefits and Advantages
- Water-based.
- Internally reinforced with micro-fibres, making it stronger and tougher without the need for external reinforcement.
- User and environmentally friendly.
- Provides a tough, trafficable membrane.
- UV Resistant, suitable for exposed areas.
- Water ponding resistant.
- Low dirt pick-up - can be cleaned.
- Can be readily repaired or over-coated, if required.
Precautions in Use
Product is considered low risk is used properly as intended. Whilst Fibrecryl is a user friendly product it is recommended that all safety precautions are followed as per the product's material safety data sheet. In exposed areas, do not apply if rain is imminent and protect membrane from rain, water and inclement weather until fully cured.
Priming and Surface Preparation
Good preparation is essential. Surfaces must be sound, stable, dry, clean and free of dust, loose, flaking, friable material and substances that may diminish adhesion.
Priming
Surfaces should be suitably primed with Duram Primeseal applied at no less than 1 litre per 4m² and allowed to dry. Duram Primeseal must be used for roof and exposed areas, timber and particle board surfaces, bitumen or where there is a risk of entrapped moisture in the substrate which may cause the membrane to bubble.
Alternative primers such as shown below may be used in non-exposed areas and where the moisture content of the surface is very low. Excessively porous, friable and dusty surfaces may require an additional priming coat. Please refer to the product data sheets of the stated primers.
Metal: Apply rust converter, clean and then a metal etch primer.
On Walls: Concrete, cement, cement render, FC sheeting, Blue Board: Maxiprime or Azcoseal applied at 4m² per litre
Detailing Preparation
Corners
Prime as required.
Apply an adequate flexible polyurethane sealant, in accordance the manufacture's instruction and tool off to form a solid, coved or 45º fillet extending at least 10mm on to the adjacent surfaces. Apply the Duram membrane directly over the sealant and on the adjacent surfaces.
For Additional waterproofing protection the following additional steps should be taken: Lay a strip of Duram Leak-Seal Tape (self-stick, butyl mastic waterproofing membrane with a polyester backed reinforcing fabric) over the cured polyurethane sealant (as described above) pressing it firmly on the surface. Apply the Duram membrane directly over the tape and on the adjacent surfaces.
Joins, Gaps and Cracks
General
Joins, gaps and cracks should be suitably filled and sealed with an appropriate elastomeric sealant, preferably a polyurethane sealant, and allowed to cure.
Recommendation: The movement of small cracks should not be underestimated and should be at least covered with a flexible polyurethane sealant or additional coats of membrane.
Large or Live Cracks
Large cracks should be routed out to form a V and then filled and sealed with a polyurethane waterproof joint sealant as per the manufacturer's instructions. The sealant should be finished slightly proud of the surface and allowed to cure.
After priming, as required, lay a strip of Duram Leak-Seal Tape over the join or crack pressing it firmly on to the substrate. The Duram membrane is then applied directly to the Duram Leak-Seal Tape and extending at least 75mm on to the adjacent surfaces.
If the Duram Leak-Seal is not used then a suitable bond breaker tape (such as duct tape) at least 48mm wide should be laid over the join or crack and apply a fully reinforced Duram membrane consisting of a base coat of membrane in to which the reinforcing fabric is embedded, a saturating coat of the Duram membrane ensuring that the fabric is entirely saturated and covered and then allowed to cure. At least one or two further coats are applied as per the Duram membrane's Product Data Sheet extending at least 75mm on to the adjacent surfaces.
Joins - Particularly in CFC Sheeting and Timber Sheeting
Ideally the sides of the sheets should be fully coated with a flexible polyurethane waterproof joint sealant prior to butting the sheets together.
If not, the joins should be suitably filled and sealed with an appropriate elastomeric polyurethane waterproof sealant and finished flush with or preferably slightly proud of the surface and allowed to cure.
After priming, as required, lay a strip of Duram Leak-Seal Tape over the join, pressing it firmly on to the substrate. The Duram membrane is then as described under 'Large or Live Cracks'.
If the Duram Leak-Seal is not used then follow the procedure as described under 'Large or Live Cracks'.
Waste Outlets, Penetrations and Angles
Waste Outlets: Floor wastes and puddle flanges should be rebated in to the floor to allow water to readily drain. The perimeter of waste outlets and around bases of penetrations should be sealed with a polyurethane sealant and allowed to dry.
Plastic or metal angles: Where required by the Building Code such as internal hobs and exterior door barriers and also plastic corner angels under wall boards, they should be securely embedded in to a continuous, gap free bed of a polyurethane sealant / mastic.
Application
Application can be with brush, roller or soft broom in a minimum of 2 coats at a minimum of 0.8 litres per m² per coat (1.6 litres per m² for 2 coats) ensuring that the dry film thickness is at least 1.2mm. Where exposed to the elements, do not apply membrane if rain is imminent and protect the membrane from water and damage until it has fully cured.
Reinforcing System
In areas such as corners and over joins and cracks the membrane should be used in conjunction with a reinforcing fabric (Duram Durascrim or fibreglass matting) the application consists of applying a base coat in to which the reinforcing fabric is laid followed by the application of a saturating coat ensuring that the product is worked well in to the fabric and that no wrinkles or bubbles are present and that fabric is entirely saturated and covered with product. Allow to cure. Apply one or two further coats of products. Minimum combined product usage is 2 litres per m² with a dry fil, thickness of 2mm.
Wall System:
Apply two coats of Fibrecryl at the rate of .340 litres per m² per coat. The minimum dry film thickness should be at least 500 microns. The crack bridging properties of the coating is dependent upon the cured thickness and additional coats may be required over doubtful areas.
Coverage
The stated average coverage rate may vary depending upon type, condition, porosity, texture of the surface and application technique.
Generally a minimum of 2 coats at a minimum of 0.8 litres per m² per coat (1.6 litres per m² for 2 coats) ensuring that the dry film thickness is at least 1.2mm. When using with Durascrim usage is a minimum of 2 litres per m² ensuring that the dry film thickness is at least 2.0mm.
Walls: 2 coats at a minimum of 0.7 litres per m² ensuring that the dry film thickness is at least 500 microns (0.5mm)..
Colours
Fibrecryl is Grey but can be tinted to a wide variety of colours. Minimum quantities may apply.
Drying and Curing
Drying and curing of the product is affected by type, dryness and porosity of the surface, temperature, humidity, ventilation, climate conditions and application technique and therefore drying and curing can only be given as a guide.
At 25ºC and 50% RH (per coat) and good ventilation:
Touch dry: 2 to 4 hours
Recoat: 6 to 12 hours.
Full cure: 24 to 36 hours.
Service Temperature: 5ºC to 50ºC .
Application Temperature: 5ºC to 30ºC.
Storage
Fibrecryl should be stored in a cool dry place. Product is water based and not flammable.
Clean Up
All tools and equipment should be cleaned in water as soon after completion as practical.
Tiling, Topping or Top Coating
Usually the product is left exposed.
Safety & Precautions
Fibrecryl is a user friendly and safe to use if used correctly as intended. The use of rubber gloves and eye protection is recommended. Observe the safety precautions on the pail, data sheet a and material safety data sheet.
For full safety data refer to the products Material Safety Data Sheet. Observe precautions as per label.
Tests and Technical Data
Shelf Life: Up to 12 months in unopened containers stores in cool, covered area.Generally only available in 15 Lt pails.
Issued: 1 May 2007 | Valid to: 31 May 2010
Conditions of Use and Disclaimer
The information contained in this data sheet is given in good faith based upon our knowledge and current information and does not imply warranty. The information is provided and the product sold on the basis that the product is used for its intended use and applied in a proper workman like manner in accordance with the instruction in this data sheet onto suitable and correctly prepared surfaces which shall remain sound, stable, free of structural defects, cracking, spalling concrete cancer, negative pressure, movement or other conditions that may effect the performance of the product. Deviations from application instructions may diminish or negate the performance of the product. Under no circumstances will the Company be liable for any loss, consequential or otherwise, arising from the use of the product. Liability is limited to the replacement of proven faulty product.