Durex® Trim Cast is a two-component polymer-based cementitious base coat formulated to create a surface that replicates fine-cut stone. It consists of a polymer modifier, Durex® Flex Bond TopCoat, which has a substantially higher polymer content, mixed with the dry component, Durex® Trim Cast. This advanced formulation enhances strength and durability, making it highly resistant to the elements without requiring additional protective coatings. Trim Cast uses a fine blend of natural aggregates to achieve a stone-like finish that can be troweled to a fine smooth surface.
Durex® Trim Cast has been formulated to provide a highly flexible cementitious coating which is very crackresistant. It can be bent over a 6.4 mm (1/4”) mandrel without cracking. Durex® Trim Cast provides thefollowing features:
- Superior adhesion to various inorganic substrates
- Combines cement strength with high polymer flexibility
- Designed for long-term durability without additional protective coatings
- Fine natural aggregate blend for a realistic stone finish
- Can be troweled to a fine smooth surface
- Excellent job site quality control
Durex® Trim Cast is available for direct-applied wall casting or for use in molding extrusion processes. It is ideal for applications requiring a fine-cut stone appearance with enhanced durability in exterior environments.
| Product Type | Cementitious dry fine powder mixture | |
| Appearance | White fine powder | |
| Viscosity | N/A | |
| pH Level | 11 - 12 | |
| Toxicity | Non-toxic |
| Method | Results | |
|---|---|---|
| Tensile Strength | ASTM C109 | 0.98 MPa (145 psi) without mesh |
| Elongation | ASTM D412 | 4.5% |
| Flexural Strength | ASTM C293 | 11.5 MPa (1650 psi) |
| Dry Adhesion | ASTM D4541 | 1.75 MPa (253 psi) |
| Water Vapour Permeance | ASTM E96 | 325 ng/Pa.s.m2 @ 25°C |
| Impermeability to Water | CCMC 6.7 | Pass |
| Coefficient of Water Absorption | CCMC 5.5.1 | 0.00012 kg/(m2.s1/2) |
| Salt Spray Resistance | ASTM B117 | Passed (500 hours) |
| Accelerated Weathering | ASTM D822 | Passed (2500 hours) |
| Freeze/Thaw Resistance | CCMC Method | Passed (50 cycles) |
