Description

WEST SYSTEM G/5 Five-Minute Adhesive 865-16 is a fast-setting, two-part resin and hardener system for quick repairs, tooling, general bonding, and temporary spot-bonding while standard epoxy work cures. It uses a simple 1:1 mix ratio by volume and bonds to common marine and shop materials including wood, fiberglass, metal, glass, ceramic, stone, cork, leather, plaster, paper, and some plastics. The 865-16 kit includes two 16 fl. oz. bottles for a total of 32 fl. oz. of adhesive system.

Key Features

• Fast-setting two-part epoxy adhesive system
• Simple 1:1 mix ratio by volume
• Working time: approximately 3–5 minutes
• Full cure: approximately 4 hours at 72°F
• Amber cured colour
• Bonds wood, fiberglass, metal, ceramic, glass, stone, cork, leather, plaster, paper, and select plastics
• Can be modified with WEST SYSTEM fillers for gap filling or bonding needs
• Size: two 16 oz bottles / 32 oz total
• WEST SYSTEM part number: 865-16
• UPC: 811343012434

Application Compatibility

G/5 is suited for quick marine, shop, household, and woodworking repairs where a fast-set adhesive is useful. It can be used for small bonding jobs, holding parts in place, light-duty repairs, tooling, and temporary positioning while a slower-cure WEST SYSTEM epoxy bond sets. It is not recommended for long-term bonds that will be exposed to high loads or continuous moisture.

Fitment Notice

This is an adhesive system, not an engine-specific part. Before ordering, confirm the required working time, bond strength, moisture exposure, substrate type, and repair size. For structural, high-load, underwater, or long-term wet-service bonding, choose the appropriate WEST SYSTEM epoxy system for the job instead of relying on a five-minute adhesive.

When This Part Needs Replacement

Replace old adhesive if the containers are expired, contaminated, crystallized, leaking, improperly stored, or no longer mixing and curing correctly. For best results, use fresh resin and hardener and avoid using partially cured or poorly sealed product on critical repairs.

Installation Notes

Mix resin and hardener thoroughly at a 1:1 ratio by volume before application. Prepare bonding surfaces by cleaning, drying, and sanding where appropriate. Apply the mixed adhesive within the short working window, clamp or hold parts in position, and allow the bond to cure fully before loading. Use suitable gloves, ventilation, and surface protection during mixing and application.

Alternate/Superseded Part Numbers

• WEST SYSTEM 865-16
• 86516
• 655-C86516
• 655-86516
• 655-86516F1
• G/5 Five-Minute Adhesive Pint Kit
• UPC: 811343012434

Parts Desk Insight

G/5 is best used when speed matters more than maximum structural strength. It is handy for small repairs and positioning parts, but for heavy-load marine bonding or wet-service repairs, a slower WEST SYSTEM epoxy setup is usually the better long-term choice.

Shipping: Ships same or next day for fast Canada wide shipping.