Adhesive / Sealant

LOCTITE® EA 9490 Underwater Repair Epoxy 4oz

Name: LOCTITE® EA 9490 Underwater Repair Epoxy 4oz
Brand: Hong Teck Hin
Availability: InStock

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Description

LOCTITE® EA 9490 is a high-performance, commercial-grade 2-part epoxy adhesive stick designed for immediate, permanent bonding, filling, and sealing under wet or fully submerged conditions. As a leading industrial supplier, we maintain in-stock supply and offer competitive bulk pricing on LOCTITE EA 9490 for marine, plumbing, irrigation, and municipal maintenance operations. Unaffected by salt water or chlorinated environments, this putty-like epoxy repairs leaks, plugs cracks, and restores worn surfaces on wet or dry equipment.

Key Performance Features

Underwater & Wet Surface Curing: Sets up and cures underwater; adheres reliably to damp and wet substrates to stop active leaks.
Chemical & Water Resistance: Unaffected by chlorinated water or salt water, making it ideal for harsh marine and plumbing environments.
Post-Cure Machinability: Once fully cured at room temperature, the material can be drilled, tapped, sanded, machined, and painted.
Multi-Substrate Adhesion: Delivers high-strength structural bonding across metal, ceramic, concrete, wood, and most rigid plastics.
Pre-Measured Convenience: Co-extruded 2-part resin and hardener format allows easy cutting, twisting, and hand-kneading without measuring tools.

Technical Specifications

Product Name / Part: LOCTITE EA 9490 (4oz Epoxy Stick)
Chemical Type: 2-Part Epoxy Putty
Color: Green / White
Cure Type: Room temperature cure (Underwater / Wet setting)
Key Substrates: Ceramic, Concrete, Metal, Plastic, Wood
Maximum Continuous Operating Temperature: Up to 150°C (300°F)
Maximum Surface Application Temperature: Do not apply to surfaces exceeding 66°C (150°F)
Optimal Storage Temperature: 8°C to 21°C (46°F to 70°F)
System Limitations: Not recommended for pure oxygen, oxygen-rich systems, or strong oxidizing materials such as chlorine gas.

Application Instructions & Surface Preparation

For maximum adhesion, thoroughly clean and mechanical-sand the substrate surface prior to application. Ensure operators use protective gear prior to mixing. Cut the required length of LOCTITE EA 9490 from the stick and strip the clear plastic wrapper. Twist the material to create a spiral pattern of resin and hardener, then knead for 2 to 3 minutes until a uniform color is achieved. For underwater repair, form the mixed epoxy into a compact ball and push firmly onto the target surface to displace water between the adhesive and substrate. Prepare surfaces before application with an approved industrial surface cleaner.

Frequently Asked Questions (FAQ)

Can LOCTITE EA 9490 be applied and cured directly underwater?

Yes. LOCTITE EA 9490 is specifically engineered to adhere, set up, and fully cure underwater as well as on damp or wet surfaces. When applying underwater, shape the kneaded epoxy into a ball and push firmly onto the substrate to displace water between the adhesive and the repair surface.

What is the maximum operating temperature for LOCTITE EA 9490?

Once cured, LOCTITE EA 9490 can withstand continuous operating temperatures up to 150°C (300°F). However, the product must not be applied to surfaces with active temperatures above 66°C (150°F).

Can LOCTITE EA 9490 be machined or painted after curing?

Yes. After room-temperature curing, LOCTITE EA 9490 forms a rigid material that can be drilled, tapped, sanded, machined, and painted for finished mechanical repairs.

Is LOCTITE EA 9490 suitable for marine and saltwater applications?

Yes. LOCTITE EA 9490 is unaffected by salt water or chlorinated water, making it suitable for sealing leaks and cracks in pumps, valves, tanks, and marine fittings.