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Loctite 350 vs Bohle VERIFIX: UV polymer comparison
The two main UV polymers on the market. Chemistry, strength, certs, and where each works best.
Two brands dominate professional UV glass bonding — Loctite 350 (Henkel, US/Germany) and Bohle VERIFIX (Germany). The differences aren't marketing — they're different chemistry with different properties.
01Loctite 350 (Henkel)
| Spec | Value |
|---|---|
| Tensile strength | up to 32 MPa |
| Shear strength | up to 18 MPa |
| Seam colour | clear |
| Cure time | 30–45 sec |
| Certification | FDA 21 CFR 175.105 (food water) |
| Yellowing | minimal (5+ years) |
02Bohle VERIFIX
| Spec | Value |
|---|---|
| Tensile strength | up to 35 MPa |
| Shear strength | up to 22 MPa |
| Seam colour | clear, sometimes light blue tint |
| Cure time | 45–60 sec |
| Certification | EN 12150 (transparent constructions) |
| Yellowing | not for 10+ years |
03Side-by-side
- Strength: VERIFIX +9% but both exceed glass itself
- Certs: Loctite for food water (aquariums, food vitrines), VERIFIX for architecture
- Longevity: VERIFIX stays clear 10+ vs 5+ years
- Price: VERIFIX 22–30% more expensive per tube; client work cost delta 4–8%
Cheap AliExpress UV polymer: 8–12 MPa strength, yellows in 6 months, no certs. Don't use — after one aquarium claim, reputation outweighs 30% savings.
04This service at REAL GLASS
If you've read this far, the topic is probably relevant to a real project. We make uv bonding in-house in St. Petersburg, with a measure within 1–3 days, 1-year warranty and a fixed contract price. All numbers in this article come from our actual 2026 quotes.
For a project-specific estimate — see the service page or request a free on-site measure.
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