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Our flagship product
Castagra Ecodur: Gypsum
Castagra Ecodur is our flagship product, and always our #1 recommendation for EPDM, asphalt, TPO or PVC roofs. It has some very impressive characteristics…
Why We Recommend Ecodur
A castor oil and gypsum chemistry that outperforms conventional coatings in the toughest conditions.
EXTREME adhesion, up to 3x stronger than conventional coatings
Durable enough for vehicle traffic
Not affected by cold temperature
Flexible, up to 60% elongation
VOC-free, BPA-free, and NSF61 certified
Resists grease, chemicals & industrial wear
Sustainable, Plant-Based Chemistry
Ecodur is made from castor oil and gypsum, a bio-based, eco-friendly formulation with no VOCs and no BPA. It bonds tenaciously to your existing roof, staying flexible through New England freeze-thaw cycles instead of cracking.
Best Suited For
- EPDM roofs
- Asphalt and modified bitumen roofs
- TPO and PVC single-ply membranes
- High-traffic and industrial rooftops
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We service Massachusetts and beyond!