THERMOTEK™ DuraMastic is an elastomeric acrylic paste-like consistency mastic, manufactured with acrylic resins, selected pigments, synthetic fiber reinforcements and high quality chemical components designed to be applied into vertical seams on metal roofs, around flashings, drains and protrusions.

Advantages & Benefits:

• Superior Protection, forms a durable, weather resistant "rubber-like" seal.
• Lightweight and spreadable consistency.
• Highly flexible.
• Superior adhesive and cohesive strength.
• Is environmentally friendly and non-flammable.
• Contains a strong mildewcide/fungicide.
• VOC compliant.