Cyanoacrylate Instant Adhesive WEICON Contact VA 250 Black LOCTITE 438
Because of its curing with residual elasticity, WEICON Contact VA 250 Black is particularly suitable for use in changing climate conditions. It is insensitive even to prolonged exposure to humidity. VA 250 Black is ideally suitable for the bonding of diverse rubber materials such as solid rubber or cellular rubber, plastics and metal/plastic joints. WEICON Contact VA 250 Black can be used in various fields of industry.
LOCTITE® 438 is a black, toughened ethyl-based instant adhesive. It has a fixture time of 10 - 20 secs., high impact resistance and is flexible. It is suitable for bonding plastics, rubber, metals, porous and absorbent substrates and acidic surfaces. Good resistance in humid environments.
Name
Cyanoacrylate Instant Adhesive WEICON Contact VA 250 Black LOCTITE 438
Brand
Condition
New
| WEICON SPESIFICATION | ||
| Base | Ethyl | |
| Texture | Liquid | |
| Colour after Curing | Black | |
| Silicone-free | Yes | |
| Processing | ||
| Processing Temperature | +15°C to +40°C | |
| Relative Air Humidity | 40% - 70% | |
| Viscosity | 2,000 - 3,000 mPa·s | |
| Density | (+20°C) | 1.1 g/cm³ |
| Gap Bridging | Up to max. 0.2 mm | |
| Curing Initial Adhesion in Seconds (Shear Strength: 0.5 MPa) | ||
| - Measured at | 23 degree C and 50% Relative Humidity | |
| On Aluminium Sandblasted | 90 - 120 sec. | |
| On ABS Untreated | 80 - 100 sec. | |
| On Rigid PVC | 8 - 10 min. | |
| Final Strength | (100% Strength) | 24 h |
| LOCTITE SPESIFICATION | |
| Colour | Black |
| Fixture time | 10.0 - 20.0 sec. |
| Gap fill | 0.15 mm |
| Key characteristics | Flexible |
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