RELAY is a polymer formulated to be mixed with water, cement and sand for resurfacing a wide variety of surfaces. RELAY mixture becomes highly mobile, thin-bond resurfacer that is easily workable, with controlled sag and flow characteristics.
RELAY mixture is a primer less system that will adhere to virtually all types of substrates to produce a new, waterproof, bondable surface compatible with all types of coatings and adhesives. It will feather to a “zero edge” without losing strength, flexibility or adhesion. A normal 2- coat application is approximately 0.45 mm ( 18-Mil ) thick.
ADVANTAGES OF RELAY
1. RELAY mixture is a primer less system that adheres to all type of substrates.
2. Resurfaces - :
• Decks
• Side walks
• Walls
• Pavements
• Floors
• Overheads
3. Apply Over -:
• Concrete
• Asphalt
• Wood
• Gypsum
• Metal
• Coatings
• Terrazzo
• Adhesive
4. RELAY is extremely versatile & can be used for horizontal & vertical applications.
5. It forms a wearing surface that is strong, durable & abrasion resistant.
6. It can be mixed with any of the Portland cements & sand.
7. Deep cracks, non-moving joints, pits & potholes can be repaired during surface preparation with RELAY mixture.
RELAY mixture will stick to virtually everything, but its ultimate bond-strength can only be as strong as the bond and the strength of the materials it is applied over. Surface should be clean, dry, and free of loose debris.
RELAY mixture forms a wearing surface that is strong, durable, and abrasion resistant. The new surface will withstand all kinds of weather conditions including freeze-thaw.
Materials that are soft, flaky, dusty or chalky, or that have low internal strength, should be removed. Glossy surfaces should be roughened by sanding or grinding.
MIXING
RELAY is mixed with any of the Portland cements and sand. Other cements may be used for quicker drying, higher chemical and heat resistance, and drying in low temperatures. 90-grit sand is recommended for normal resurfacing projects. Smaller grits may be used for smoother surfaces. Larger grits will further increase skid resistance and surface texture.
OVERLAYING
Spreading of the RELAY mixture on horizontal surfaces is easily accomplished with squeegees, although it readily lends itself to trowelling. Trowelling is recommended for tight spots, vertical and overhead surfaces.
PATCHING & DEEP FILLS
Deep cracks non-moving joints, pits and potholes can be repaired during surface preparation with RELAY mixture. A thicker mixture works best; simply add equal parts of cement and sand. Moving (structural) cracks and joints should never be filled with rigid or semi-rigid materials.
TEST RECAP
Bond Strength (ASTM D 4541)
With common Portland cements Range: 414-466 psi Average: 434 psi
Abrasion Resistance (ASTM C 501)
1000 cycles, H-22 Calibrate
wheels -- Average depth of wear
24 mils (roughly equivalent to
5,000 psi concrete).
Weathering (ASTM G 43 -- modified to
include freeze cycle)
After 31 cycles (5,208 hours), no
sign of peeling, chalking, blistering,
loss of adhesion, fading or algae
growth.
Smoke and Toxic Fume Emission
(British Standard 6853)
Accepted (negligible emission).
Recommended proportions (by volume): 1. Part RELAY, 1. Part water, 2. Parts cement,
2. Parts 90-Grit Sand (or Finer).
APPLICATION INSTRUCTIONS
Do not apply on frozen, damp or wet surfaces. Do not apply Portland cement mixture in air temperatures or on surfaces below 50°F (10°C).
Relay mixture will begin to dry and harden within a few minutes after spreading. Time to completely dry will depend on temperature, humidity and type of cement. Hardening will take longer in shaded areas and indoor, and in holes and cracks. Increased ventilation (e.g. fans, moving air) will shorten drying time.
Application should be made with tools suited for the project. Start with small amounts of mixture until familiar with its handling. After application, IMMEDIATELY clean all equipments with water or with soap & water.
When RELAY mixture is firm enough so that pressing it or walking on it does not leave marks, trim and smooth lumps, squeeze mark and brush marks with a scraper or drywall knife.
To ensure effective performance, minimum 2- coat coverage is recommended. 3 or more coats may be necessary to smooth very rough or pitted surfaces. Minimum 3 coats are required over cutback (Petroleum distillate) adhesives and coverings containing asbestos or lead.
COVERAGE
One gallon (3.78 Litres) of RELAY, mixed according to the recommended mix proportions, will provide 2-coat coverage to approximately 200 Square feet. Coverage will be less on spilled, damaged and textured surfaces. On smoother surfaces such as terrazzo or metal, coverage may be substantially more.
LIMITATIONS
RELAY Mixture will not properly adhere to standing oil or grease, visibly wet or damp surfaces, or to silicone coatings or residue.
POST APPLICATION PROTECTION
Protect treated surfaces from exposure to water for 24 hours. Water may cause a white film to form on the surface. This affects appearance only. Adhesion and durability are not affected.
WARRANTY
A limited 5-year bonding warranty is available when RELAY mixture is applied by certified applicators.
TECHNICAL ASSISTANCE
Technical assistance is available from the manufacturer, from trained field-representatives, and from Certified Applicators.
