Effisus Bolt Protect
Permanent Sealing for Metal Roof Bolt Holes
Metal roofing typically implies the use of several self-drilling screws, and these are potential water ingress spots, even when these fixings have a sealing washer. Effisus Bolt Protect is an easy to install long-lasting solution that comprehensively mitigates all water leakage risks.

Corroded fastener

Loose bolt
These are potential water ingress spots, even when these fixings have a sealing washer.
Due to the high variance in the screw’s installation, some are torqued too lightly, some too hard, some over inclined, all leading to potential seal breaches. This is aggravated by structural movements, differential thermal expansion and over time screw corrosion and washer degradation. Moreover, in the case roofs are accessed for maintenance, stepping on the bolts will almost instantly promote a risk for water ingress.
Where traditional repairs are often temporary, Effisus Bolt Protect is an easy to install long-lasting solution that comprehensively mitigates all water leakage risks and reduces corrosion development around the screw. Its high-elastic membrane and specialized rubber capsule create a perfect fit around each screw, resisting to UV exposure and low/high temperatures.
For a comprehensive offering against water intrusion in metal roofing, Effisus Bond FT answers metal roof flashings or edge trims and Effisus AllTiteGutter and Effisus TiteGutter3 are highly differentiated solutions for gutters.
| Property | Standard | Value |
|---|---|---|
| Material | – | EPDM |
| Colour | – | Black |
| Dimension | – | Ø 100mm, Ø 150mm |
| Tensile Strength (uncured) | ASTM D 412 Die C | 250 psi max. |
| Ozone Resistance | ASTM D 1149 | No Cracking |
| Peel Strength | ASTM D 413 | 10 pli @ 70ºF |
| Brittleness Temperature | ASTM D 2137 | -45ºC |
| Service Temperature | ASTM D 3359 | -40 ºC to 93ºC |