Description
Polydek is a high performance, liquid-applied waterproofing membrane of styrene acrylic polymer. It consists of a very elastic polymer with the inherent flexibility that allows the membrane to accommodate movements in the substrate. It works as a seamless membrane that performs and adapt to any construction requirements in varied climatic conditions.
Polydek is especially formulated to seal, waterproof and decorate exterior surfaces & roofs. It seals cracks and joints in old or new roofs /walls and simultaneously leaving a seamless finish to the roof surface. Due to its versatility, it can be practically applied to any supported substrates like concrete, asbestos cement, fibre cement and on existing membranes.
USES
- Fire Walls
- Concrete slab roofs
- New & old roofs / walls
- Car porch roofs
- Fibre cement boards
- Gutters.
Angle Fillet
- Form an angle fillet of 25 X 25mm with Greenseal Injection Grout / Greenseal 300 at all junctions between slabs and walls.
- Mix 3 parts of Greenseal Injection Grout / Greenseal 300 to 1 part water and mix thoroughly to a mortar consistency and apply with trowel to form the angle fillet.
Outlet Pipe Penetration
- Hack a V groove joint with a depth of 25mm
surrounding the outlets and pipes. - Wash thoroughly the hacked areas to expose the
clean concrete surfaces between the outlet pipe
and the concrete. - Mix 3 parts of Greenseal Injection Grout /
Greenseal 300 to 1 part water and mix
thoroughly to a mortar consistently and apply
with a trowel into the hacked V groove and level
it to the concrete level.
APPLICATION INSTRUCTIONS
SURFACE PREPARATION
Ensure all surfaces are clean and free from dirt, oil, grease, efflorescence, fungi growth, loose particles and laitance. As for horizontal surfaces must be cast to fall as Polydek will be finishing product to avoid ponding on Polydek surfaces. Hack off honeycombs to expose concrete. Remove all chipped and loose particles and clean surface before repairing.
Lastly, repair all hacked off areas with Greenseal Injection Grout / Greenseal 300 mortar.
Ensure new concrete is at least 3 days old before application of Polydek.
PRIMER
Apply Greenshield Primer to unpainted clean surfaces for better adhesion. For painted surfaces, remove all flakes of paint before applying Greenshield Primer.
APPLICATION METHOD
Application for 1 coat Greenshield Primer + 2 coats Polydek
1. Thoroughly clean concrete surfaces free of oil, grease, paint and loose dust, mud and laitance and hose down concrete surfaces thoroughly.
2. Polydek shall be applied in minimum 1 coat Greensheild Primer + 2 Coats Polydek for wall surface.
3. The Greenshield primer coat shall be applied at the rate 0.1litre/m2 with a proper roller ensuring that all surface of the concrete surface is covered.
4. When the primer coat is dry and can accept foot traffic without lifting up of material when step on. This would at least be 2 to 3 hours after the primer coat application.
5. Over the Primer coat, roll a first coat of Polydek at the rate of 0.3litre/m2 on top of the primer coat.
6. Wait for the first coat Polydek to be dry at least 3 to 4 hours later.
7. Then applied the second coat (top coat) of Polydek at the rate of 0.3litre/m2 per coat and then wait for the Polydek dry.
Application for 1 coat Greenshield Primer + 3 coats Polydek
1. Thoroughly clean concrete surfaces free of oil, grease, paint and loose dust, mud and laitance and hose down concrete surfaces thoroughly. Polydek can be applied by using brush or roller
over the entire surfaces.
2. The first coat Greenshield primer shall be applied at the rate 0.1litre/m2 with a proper roller ensuring that all surface of the concrete surface is covered.
3. Then applied the first coat of Polydek at the rate of 0.3litre/m2 per coat and then wait for the greenshield primer dry for at least 3 hours minimum before the application of the first coat
of Polydek.
4. Wait for the first coat Polydek to be dry at least over night or 3 hours minimum and then only applied the second coat of Polydek at the rate of 0.3litre/m2 per coat.
5. Finally apply the final coat (top coat) of Polydek is to be applied at the rate of 0.3litre/m2 per coat and leaving it to cure for at least 3 hours.
Application with Reinforce Fiber Mesh
1. Thoroughly clean concrete surfaces free of oil, grease, paint and loose dust, mud and laitance and hose down concrete surfaces thoroughly. Polydek can be applied by using brush or roller
over the entire surfaces.
2. The Greenshield primer shall be applied at the rate 0.1litre/m2 with a proper roller ensuring that all surfaces of the concrete surface is covered. Then wait for 2 hours for it to dry.
3. Then applied the first coat of Polydek at the rate of 0.3litre/m2 per coat. While the first coat Polydek still wet, lay the Polyester Fiber Mesh over it and ensuring it all flattern and not ringers
occurs. Then wait for the first coat Polydek to dry atleast 3 hours and apply the second coat of Polydek at 0.3litre/m2. It is important roll the second coat with sufficient material to cover the
Fiber Mesh.
4. When the third coat Polydek is dry, then apply the final coat (top coat) of Polydek at the rate 0.3 litre /m2 and ensuring all the Fiber Mesh are covered and no holes appears. Leaving it to cure for at least 3 hours.
CURING
Allow 24 hours between coats. A final curing time of 48 hours is adequate at normal working temperatures. Ensure curing is complete before laying thermal insulation boards, mechanical protect and other coverings. Low Temperatures and high atmospheric humidity will slow down the curing rate, and vice versa.
RECOATING
Recoating is required after 5-7 years, the membrane surface can simply be cleaned and re-coated with a refresher or single top coat.
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