Loctite 401 Instant Adhesive

LOCTITE 401 is a 1-part, fast curing cyanoacrylate adhesive. It is designed for the assembly of difficult-to-bond materials, requiring uniform stress distribution. This product is suited for use on a wide range of materials. These include metals, plastics and elastomers. LOCTITE 401 also quickly bonds porous materials, such as wood and fabric.

LOCTITE 401 is a low viscosity adhesive. Full strength is developed in a very short time. However, curing continues for at least 24 hours, before full chemical  resistance is developed. Width of the bondline gap and ambient humidity both affect curing speed.

• Very high bonding strength
• Perfect for all kinds of small repairs
• Low viscosity
• Instantly bonds a wide range of substrates

How to use Loctite 401:

1. Clean surfaces before applying the product.
2. To improve bonding on low energy plastic surfaces, LOCTITE 770 primer may be applied. Allow it to dry.
3. LOCTITE activator may be used if necessary. Apply it to one bond surface. Do not apply activator to a primed surface. Allow it to dry.
4. Apply LOCTITE 401 to one of the bond surfaces. Do not apply on the activated surface. Do not spread the adhesive with a tissue or brush.
5. Assemble components carefully. The short fixture time leaves little opportunity for adjustment.
6. Hold together or clamp bonds until the adhesive has fixtured.
7. Allow product to develop full strength before subjecting to any service loads. This will usually take between 24 and 72 hours.

Storage

Store LOCTITE 401 in the unopened container in a dry location. Optimal Storage: 2° C to 8° C. Storage below 2° C or greater than 8° C can adversely affect product properties.