IMPA: 812818

Rubber-Toughened Instant Adhesive (IMPA 812818)

This rubber-toughened instant adhesive is a high-performance cyanoacrylate formulation engineered for demanding marine applications. It delivers rapid fixture and excellent adhesion across a wide range of substrates, including rubber, plastics, metals, and composites. The rubber-toughening agent improves impact resistance and shear strength, making it a reliable choice for packing and jointing tasks where vibration and thermal expansion are common.

Specifically designed for shipboard environments, this IMPA 812818 adhesive cures quickly at room temperature without the need for clamps, reducing downtime during repairs. Its gap-filling capability accommodates uneven mating surfaces and its resistance to water and oils ensures durable sealing in bilge, engine room, and deck fittings. Whether used for emergency repairs or regular maintenance, this adhesive provides a robust, long-lasting bond that stands up to harsh maritime conditions.

Key Features

Technical Specifications

PropertyValue
Chemical BaseCyanoacrylate (ethyl)
ColorBlack
Viscosity (cP at 25°C)250 – 400 (medium)
Fixture Time (steel)15 – 30 seconds
Full Cure Time24 hours
Gap FillUp to 0.25 mm
Operating Temperature Range-40°C to +100°C
Shear Strength (steel)≥ 18 N/mm²
Packaging20 g bottle

Frequently Asked Questions

What surfaces can this adhesive bond?

This rubber-toughened cyanoacrylate adhesive bonds well to rubber, plastics, metals, and composites commonly found in marine environments. It is ideal for joining gaskets, seals, hoses, and metal fittings.

How long does it take to cure?

Initial fixture occurs in 15-30 seconds on active surfaces like steel, depending on humidity and temperature. Full cure is achieved within 24 hours for maximum bond strength.

Can it be used in wet or humid conditions?

Yes, it is designed to resist water and moisture. While surfaces should be dry for ideal application, the cured bond maintains integrity even in bilge and engine room environments where water and oil are present.

Is this adhesive suitable for large gaps?

This formulation is a medium-viscosity adhesive that fills gaps up to 0.25 mm. For larger gaps, use an activator or modify the fit; it is not a structural filler.

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