PC-780 is a rapid setting, 100% solids, flexible, aromatic two-component polyurea. This odorless volatile- free elastomeric is specially designed to be applied to various substrates including concrete, metal, geotextile and other lining membranes. PC-780 gels in 15 seconds—it can be applied in single or multiple applications without the concern of sagging. PC-780 offers a tack-free time of about 3 minutes and a low amount of stress shrinkage from curing at <0.7%.
Physical Properties
Mix Ratio by Volume | 1:1 |
Gel Time (Seconds) | 15 – 20 |
Tack-Free Time (Minutes) | 3 |
VOC Content | 0 |
Solids Content | 100 |
Shore A Hardness ASTM D2240 | 80 – 85 |
Shore D Hardness, ASTM D2240 | – |
Elongation, ASTM D638, Type IV | 500±50 |
Tensile Strength (PSI), ASTM D638, Type IV | 1400±500 |
Tear Strength (lb./in.), ASTM D624, Die C | 300-450 |
Taber Abrasion, ASTM D4060 (CS-17 Wheel, 1000 Cycles) | ~ 18 |
Water Vapor Transmission, ASTM E96, Proc A, permeability (80 mils), grams/Pa*s*m | 8.63E-11 |
The values stated in this technical data sheet are produced under controlled laboratory conditions.
