Permabond ET5143 Food-Safe 2-Part Epoxy Adhesive – FDA 21 CFR 175.105 Compliant

Permabond ET5143 is a professional-grade, two-part epoxy adhesive designed for strong, durable bonding with excellent resistance to impact and vibration. Its thick, thixotropic consistency helps the epoxy stay where you put it while filling gaps up to 2 mm (0.08 in.), making it a great choice for repair, fabrication, maintenance, and assembly work.

What makes ET5143 especially useful for food-industry applications is its FDA-compliant formulation. Permabond has specifically formulated ET5143 to meet the requirements of FDA 21 CFR 175.105, the U.S. regulation covering adhesives used as components of articles intended for packaging, transporting, or holding food.

Why Choose Permabond ET5143?

• FDA 21 CFR 175.105 compliant formulation

• Strong adhesion to a wide variety of materials

• 1:1 mix ratio for straightforward dispensing

• 60–80 minute working time

• Gap filling up to 2 mm / 0.08 in.

• High shear and peel strength

• Good impact and vibration resistance

• Thick, controlled-flow formula helps prevent running or sagging

• Full room-temperature cure

• Available for use with convenient dual-cartridge dispensing systems

Permabond lists broad substrate adhesion, room-temperature cure, FDA compliance, high shear and peel strength, and good impact strength among ET5143's primary benefits.

What Does “Food Safe” Mean?

Permabond ET5143 is specifically formulated to meet FDA 21 CFR 175.105 requirements for adhesives used in food-related articles.

This does not mean that uncured ET5143 is edible or that it can automatically be used in every direct-food-contact application. FDA 175.105 governs how adhesives can be incorporated into articles used for packaging, transporting, or holding food, and the finished assembly still needs to be used in accordance with the applicable FDA conditions.

Strong Bonding Performance

ET5143 delivers excellent mechanical strength once fully cured.

Actual bond strength will vary with substrate, joint design, gap, and surface preparation.

Easy 1:1 Mixing

ET5143 uses a convenient 1:1 mix ratio by volume, making it well suited for dual-cartridge dispensing systems and static mixing nozzles.

At approximately 23°C / 73°F:

• Usable / Pot Life: 60–80 minutes

• Handling Time: 3–5 hours

• Working Strength: approximately 16 hours

• Full Cure: approximately 72 hours

Heat can substantially accelerate the curing process. At 60°C / 140°F, Permabond lists approximately 30 minutes to working strength and 1 hour to full cure.

Recommended Accessories

For 50 mL Cartridges

Maven DMA50 Manual Dispenser
A convenient hand-operated dispenser for controlled application of 50 mL dual-component adhesive cartridges. Ideal for repairs, occasional use, maintenance departments, and smaller bonding jobs.

MIXPAC MBQ 05-24L Static Mixing Nozzle
Recommended for automatically combining the two ET5143 components as they are dispensed, providing a consistent mixture directly from the cartridge.

For 400 mL Cartridges

Maven MV400-36X Manual Dispenser
A heavy-duty manual dispenser designed for larger 400 mL dual cartridges. A good choice for production, maintenance, fabrication, and applications where more adhesive is required.

MIXPAC MFQ 10-24T Static Mixing Nozzle
Recommended mixing nozzle for the larger cartridge configuration, allowing the two components to be thoroughly mixed during dispensing.

How to Use

1. Make sure bonding surfaces are clean, dry, and free from grease.

2. For metal surfaces, clean with an appropriate solvent such as acetone or isopropyl alcohol.

3. Some metals, including aluminum and copper alloys, may benefit from light abrasion before bonding.

4. Insert the dual cartridge into the appropriate dispenser.

5. Remove the cartridge cap and dispense a small amount until both components are flowing evenly.

6. Attach the appropriate static mixing nozzle.

7. Dispense ET5143 onto one bonding surface.

8. Assemble the parts within the 60–80 minute working time.

9. Clamp or hold the assembly for approximately 5 hours or until handling strength is reached.

10. Allow approximately 72 hours at room temperature for full cure.

These preparation and application instructions follow Permabond's current ET5143 technical datasheet.

Typical Applications

ET5143 is a strong choice for:

• Food-processing equipment assemblies

• Commercial kitchen equipment components

• Stainless-steel and metal fabrication

• Aluminum assemblies

• Equipment repair and maintenance

• Brackets, housings, and fixtures

• Gap-filling structural repairs

• Parts exposed to vibration or impact

• Food-packaging and food-handling equipment applications where FDA 21 CFR 175.105 compliance is required

Product Specifications

Product: Permabond ET5143
Adhesive Type: Two-Part Epoxy
Mix Ratio: 1:1 by volume
Part A: White epoxy resin
Part B: Black polyamine hardener
Maximum Gap Fill: 2 mm / 0.08 in.
Pot Life: 60–80 minutes at 23°C
Handling Time: 3–5 hours at 23°C
Full Cure: 72 hours at room temperature
FDA Compliance: Formulated to meet FDA 21 CFR 175.105
Storage Temperature: 5–25°C / 41–77°F