Adhesive for EPDM and PVC membranes - ATK 812

The ATK 812 adhesive is intended for sealing roofing in the form of a membrane or PVC and EPDM foil. Appropriate sealing compound ensures proper strength and tightness. We seal: EPDM films - membranes with each other and sealing to the wall, skylight, etc. pvc roof membranes - cuts, holes, etc. , roofing felt, sheet metal etc. Ventilation inlets and PP air inlets !!! - need to be applied with ATK 822 / ATK 8154 primer. Why is ATK 812 better than other products on the market? greater physical strength than silicone and bituminous sealants 100% resistance to light several times higher resistance to aging - most products are replaceable after 1-2 years because they either detach from the surface and do not provide tightness or crack when exposed to direct sun does not harden and does not crack over time does not contain solvents does not contain harmful isocyanates as sealants on polyurethanes does not creep over time as silicones does not damage galvanized and painted surfaces such as acetic silicones does not cause corrosion can be applied vertically in ceiling positions directly from the tube or by applying with a spatula Repair: - wash with a "thicker" membrane - cut and trace / mark the size of the patch so that it is 5-7 cm larger than the crack - wipe the surfaces with sandpaper or a copper / brass brush to remove the old damaged layer (it is a slight rub, roughening the surface and not making another holes) - degrease the whole thing with a degreaser on alcohol or acetone - apply ATK 822 preparation on both sides and wait 20 minutes (if you are gluing the epdm membrane or PP plastic fireplace, apply the 822 primer to the surface at the point of gluing and wait 20 minutes; in the case of PVC membranes and metal fireplaces it is not necessary) - apply the ATK 812 glue line around it so that there are no gaps - apply a line of glue in the middle every 3-5 cm - if the surface is dry, lightly spray it with water - apply the patch and press it down When buying the product, you will receive: ATK 812 glue - black color, packaging: 400g (standard silicone tube) Degreaser for removing dirt, degreasing the surface before gluing - 100 ml.Base for ATK 822 polyurethane adhesives - 500ml Remember: when gluing the patch, always round the corners and with other materials, such as: walls, fire walls, raw and painted sheets with large patches, a single glue width after pressing should not exceed 2-3 cm. Primer 822/8154 is especially used for roofs made of EPDM membranes, fireplaces made of PP plastic, galvanized fireplaces and less cohesive surfaces. It is recommended to wipe it first with e.g. sandpaper to remove old and loose layers, separators or varnishes.