SILCOR® 580

Features

• Fast application by “flood coating” using a squeegee, without multi-layering
• Long-life, permanently flexible
• Total adhesion — no water tracking
• Fully monolithic structure
• Resistant to puncture and damage
• Resistant to ponded water
• UV-resistant and non-yellowing system
• Hard-wearing, non-slip surface

Combine with other membrane from GCP Applied Technologies to specify a full waterproof envelope.

Uses

SILCOR® 580 and SILCOR Top Coat 80 system are suitable for:

• Exposed roofing, decks and podiums
• Car parks and ramps
• Compactor room floors, plant rooms and wash rooms
• Sport stadium service-ways, plats and vomitories

SILCOR 580 Membrane may be used alone as a protective, impact-resistant, resilient, internal flooring to laboratories, sports centres and gymnasium.
The SILCOR 580 system can be applied to most clean, dry, stable surface including concrete, precast, fibre cement sheet, CFC, precast, concrete masonry, brick, render, metals and plastics.

Preparation

Surfaces must be sound, smooth and free from dust, laitance, loose matter, oil or other contaminants.
Concrete should be cured 28 days and render 7 days.
Use SILCOR LM PU sealant to fill joints, cracks, gaps and form angle fillets to internal corners or penetrations.

Note

Resurfacing of previously painted surfaces will require total removal of existing coatings to expose bare, clean substrate. Machine grinding is the preferred method.
Mix all individual SILCOR 580 components with a clean dry stirrer before use.
Preferred application temperature range is between 5°C and 30°C.

Application

Priming

To inhibit pin-holes and seal dusty, porous surfaces use one coat of SILCOR Primer BS at 0.15 - 0.3 kg/m² and allow to dry.
Use SILCOR Primer BW N105-DT to seal damp or concrete. Roughen PVC or stainless steel before priming with SILCOR Primer BW N105-DT.  Recommended moisture content <5%  based on ASTM F2659.
Application to highly porous substrates while substrate temperature is increasing may result in concrete outgassing and pinhole formation in primer. This can be reduced or prevented by priming substrates in the late afternoon or evening, when concrete temperature is stable or falling.

Mixing

Measure each individual SILCOR 580 Membrane Polyol and Isocyanate component accurately by weight into a clean container and mix thoroughly with an electric stirrer (300rpm). Preferred material mixing and application condition is 10°C - 30°C and RH < 85%.

Application

SILCOR 580 Membrane

Apply in one coat by 5mm notched trowel/notched squeegee or Two or more coats by roller, allowing to cure 12 to 24 hours between coats. Total Wet Film Thickness (WFT) = 1.8mm/approximately 2.4kg/m²) to give a minimum Wet Film Thickness (WFT) of 1.8mm and minimum required DFT of 1.5mm. Apply SILCOR Top Coat 80 non-slip top coat for a standard, non-slip finish as detailed below.
Where a high rating non-slip finish is required, apply membrane by a two stage process as follows:
Apply first coat by 5mm notched trowel/notched squeegee, as described above. Allow to cure for minimum 12 hours to maximum 24 hours, then apply a second coat at 0.4mm WFT (approximately 0.4 kg/m²). While still wet, broadcast with non-slip aggregate. Allow to cure a minimum 12 hours, remove loose aggregate and apply SILCOR Top Coat 80 as detailed below.

SILCOR Top Coat 80

Apply SILCOR Top Coat 80 by roller or air-less spray system in 2 coats at minimum 0.3kg/m² (minimum 0.15kg/m per coat). Allow 24 hours curing before foot traffic.  Allow 5 days curing before allowing vehicle traffic. Where non-slip aggregate broadcast has been employed, top coat requirement will increase significantly (0.6 to 0.9 kg/m²). Contact GCP representative for more details for the non-slip aggregate requirements.