Technical Details and Performance
Indicative information only, not to be used for setting specifications.
| Appearance | A light grey soft paste |
| Viscosity | 12,000 - 16,000 Poise @ 25oC |
|
Extrudability |
153g/min. @ 25oC, 36g/min. @ 5oC, 276kPa pressure through 3mm diameter orifice (Semco cartridge) |
| Slump | Non slump in normal applications |
| Skin | Time 3 mins. @ 25oC |
| Tack Free Time |
20 mins. @ 25oC 90 mins. @ 5oC |
| Specific Gravity | 1.26kg/Lt |
| Solids Content |
80% by weight 70% by volume |
| Cure | Neutral, will not attack metal or concrete substrates |
| Dirt Pick Up | Minimal once tack free |
| UV Stability | Minor yellowing on surface after 2000 hours continuous exposure in a UV cabinet. Minor yellowing on surface after 700 hours (300 hours light time) of accelerated weathering in a QUV weatherometer. |
| Hardness | 45 (10 weeks cure @ 40oC Shore A instantaneous) |
| Paintability | Water based paints, generally good but certain paints may require extra preparation Oil/Alkyd paints, generally good though some paints may take longer to dry unless first undercoated with a water based undercoat |
| Modulus @ 100% Extension | |
| (ASTM D412) | 176kPa (after 6 weeks cure at 40oC) |
| Ultimate Tensile Strength | |
| (ASTM D412) | 96kPa (after 6 weeks cure at 40oC) |
| Elongation at Break | |
| (ASTM D412) | 500% |
| Adhesion | Satisfactory adhesion is achieved on copper, Zincalume®, galvanised iron, hot rolled iron, milled aluminium, anodised aluminium, bituminous flashing, PVC, glass, marble, terrazzo, brick, concrete, hoop pine wood, pine wood, jarrah wood and solid polystyrene |
| Service Temperature Range | Suitable for use under normal temperatures reached on roofing materials in service |
| Application Temperature |
In very cold or very hot weather, Selleys Blockade should be conditioned to room temperature before use for best results |
