Kovertek TekCryl Acrylic Roof Repair System has been formulated to optimal flexibility & durability, all colours are very low odour and benefit from a high dry film build due to the high solids content of the product.

TekCryl is ready for use and is cold applied to all types of roofs and structures, including flat, pitched as well as bituminous surfaces, gutters, brickwork, asbestos (see porous substrates section in the Product data Sheet, available from the Data Sheets tab), concrete, felt, metal & fibreglass surfaces.

TekCryl is not suitable for walkways or balconies and is not and not suitable for us on PVC or treated/sawn timber surfaces or for internal use.

* See Guarantee certificate (download here) for full terms & conditions, please note the maximum size of one area covered by this material Guarantee is limited to 200 m² unless consultation/approval has been sought from KoverTek/Rawlins Technical Team prior to the application. All surfaces should be tested for adhesion prior to application to the full area to ensure the correct bond is achieved. Please note that if going over wet/very damp surfaces can result in blisters forming in hot weather as the any water trapped tries to evaporate, if this occurs the blister should be removed and overcoated with TekCryl.

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• Features & Benefits
• Surface Preparation
• Application
• Material Safety
• Storage & Shelf Life

Features & Benefits

• Very Low VOC and odour
• 5 Year Material Guarantee*
• Hi-solids for true ‘One Coat’ Solution
• Instant Shower protection
• Can be used all year round
• Unique formulation shown to significantly reduce lichen and moss growth
• Can be applied straight on to damp/wet* surfaces
• Fibre reinforced for gap filling and strength
• Coverage is between 1 to 2kg per m² depending on surface
• Hi UV resistance with low colour change

Surface Preparation

• Remove all loose contamination from roof such as chippings, moss, lichen, dust and dirt
• Where growth was present the area should be treated with fungicidal wash in accordance with manufacturer instructions
• Metal surfaces should be cleaned with a wire brush to remove rust and provide a key
• Any splits or blisters should be cut and sealed prior to application of TekCryl

Application

• Always try a test patch prior to large scale application
• Apply a generous coating of TekCryl to the area using a brush or roller at a rate of 1-2 kg per m² dependant on the substrate, the recommended application temperature is between 5°C - 25°C
• TekCryl can be applied to damp surfaces and can bridge cracks of several mm wide due to the fibre content
• Any larger voids should be filled with a suitable tape reinforcement such as a duct tape
• TekCryl has a drying time of 5-7 days depending on atmospheric conditions but will be waterproof immediately upon application

METALS (All ferrous metals must be treated with a rust neutraliser prior to application)

• Ferrous metals – Both new and weathered ferrous metals as well as painted galvanised, steel and iron
• Non-ferrous metals – Both aluminium sheeting and alloy box gutters as well as painted non-ferrous metals

POROUS SUBSTRATES

• Asbestos cladding, sheeting and guttering as well as concrete should be primed before applying KoverTek TekCryl using KoverTek G40 Multiseal. Please refer to HSE guidlines when handling or working with asbestos prior to purchase/use.
• The 50% diluted first coat would be expected to cover at a rate of 0.75kg per square metre as a rough guide
• The second, undiluted coat can be applied as soon as the 1st coat is dry, which we would expect to be around 12-24hrs

NON-POROUS SUBSTRATES

• Ensure that polished bricks and slate have been power washed prior to applying TekCryl, the substrate should be completely dry and free from any contamination

BITUMEN SURFACES

• Please note that discolouration may occur when TekCryl is applied on to new asphalt, bitumen or tar surfaces meaning an extra coat may be required

PREVIOUSLY COATED OR PAINTED SURFACES

• Ensure that an inspection of the substrate has been carried out, adhesives tests on any existing coating or substrate prior to application is highly recommended

Material Safety

• TekCryl is flammable and must be kept away from ignition sources
• Always ensure good ventilation during and after application
• If TekCryl comes in contact with eyes, rinse immediately with water and seek medical advice
• When applying TekCryl always wear gloves, goggles and suitable PPE
• Keep TekCryl out of reach of children
• TekCryl is toxic to aquatic animals, do not use near fishponds as may cause long term adverse effects
• Do not empty into drains
• When using TekCryl, ensure a minimum finished fall of 1:80 is achieved
• TekCryl is not recommended for use for tanking or fishponds and is not recommended for internal use
• For cleaning equipment, use white spirit

Storage & Shelf Life

• Good working practice should always be followed; walking boards should be used when needed
• All information is given in good faith and is based on our knowledge and experience but without liability
• As TekCryl have no control over application methods employed by the applicant, any warranty either written or implied is given in good faith and can only cover the material itself
• If you are in doubt or have any questions, please contact us for advice