Dur-A-Fast Sealcoat
Polyurethane Methyl Methacrylate based Traffic Bearing Waterproofing Topcoat
Coverage

106/ft² (9.85/m²) per Gallon @ 15.00 mils (0.3810 mm)

NMS
07 18 16
Description

Dur-A-Fast Sealcoat is a polyurethane modified methyl methacrylate pigmented topcoat to be used in conjunction with Dur-A-Fast Traffic Bearing Waterproofing Systems. Dur-A-Fast Waterproofing Systems are a series of rapid return to service, high performance, UV resistant decorative and functional traffic bearing waterproofing systems. Dur-A-Fast Sealcoat is a rapid curing, abrasion resistant, UV resistant coating that protects the surface and creates a tough, impermeable layer to protect the membrane, substrate or previous layers.  It is designed to be ready for light traffic within 45 minutes of application. 

Advantages
  • Polyurethane modified Methyl Methacrylate based technology
  • Extremely rapid curing, ready for light traffic within 45 minutes (depending on temperature). 
  • Cold curing capability, cures down to -20oC
  • Outstanding water impermeability sealing properties
  • Excellent water immersion properties
  • High chemical resistance to acids, alkalis, salts, seawater, sewage and other compounds
  • Fast curing properties
  • Abrasion resistant, tough product
  • UV Resistant
Uses

Dur-A-Fast Sealcoat is used as a top coat for all Dur-A-Fast Traffic Bearing Waterproofing Systems to seal and protect. Dur-A-Fast Sealcoat can be used in virtually all seasons, as it can be applied down to -20oC. Dur-A-Fast Sealcoat is also used for balcony terraces and pedestrian walkways, parking decks, mechanical rooms, plaza, pool and recreational decks, vehicular ramps and stadiums.  

Physical Properties
 
Colour

Pigmented

Resin Type

Polyurethane Modified Methyl Methacrylate

Mix Ratio

Part A (resin): Part B (Catalyst)

Cure Time @ 23°C
  • To touch: 30 minutes
  • To recoat: 45 minutes
  • Traffic: 2 hours
Pot Life @ 23°C

10 minutes

Coverage

14 m²/L (106 ft²/gal) @ 15 mils *varies on system*



Performance Properties
Method Results
Percent Solids

ASTM D7232

100%

V.O.C. & Absorption

ASTM D3960

0 g/L

Specific Gravity

ASTM D333

1.01 ± 0.05 g/L

Mixed Viscosity

ASTM D2196

1000 cps

Abrasion Resistance

ASTM 5178-91, CS-17 wheel

45 mg, 1000 g load, 1000 cycles

Tensile Strength

ASTM D 638-86

1,800 psi

Tear Strength

ASTM D624 Die C

250 lbf

Elongation

ASTM D638

30%

Water Absorption

ASTM D570

<0.1%

Shore D Hardness

ASTM D2240

60

Pull-Off Strength of Coatings

ASTM D4541

3.35 MPa (480 psi) over concrete surface

Water Vapour Transmission

ASTM E 96 - Procedure B

  • 0.05 grain/hr·pi2

  • 0.029 g/hr·m2

Water Vapour Permeability

ASTM E 96

  • 0.20 Perm In.
  • 0.0025 ng/Pa·s·m2
Water Vapour Permeance

ASTM E96

  • 4.70 x 10 - 5 perm
  • 0.028 ng/ Pa·s·m2