Permabond ET00503K050C0101, ET503 Fast Curing Epoxy, 50ml Kit, Case of 25
Permabond ET00503K050C0101, ET503 Fast Curing Epoxy, 50ml Kit, Case of 25
Permabond ET503 is a fast-curing, two-part epoxy adhesive for assemblies that need rapid strength development together with toughness and resistance to water and humidity. Its 1:1 mix ratio supports cartridge dispensing, while its thixotropic consistency helps control placement. At 23°C, the manufacturer reports a typical 6-minute fixture time and 20-minute working strength. These are handling milestones, not a statement that the adhesive is fully cured in 20 minutes.
SKU ET00503K050C0101 is supplied as a case of 25 × 50 ml dual-cartridge kits. ET503 cures tack-free to a pale dove-grey finish and can be sanded and painted after curing. Evaluate the exact substrates, joint design and service exposure before production use.
Best Uses / Applications
- Fast-paced industrial assembly: evaluate the short fixture and working-strength times where reducing clamp time or moving parts to the next operation matters.
- Metal and composite assemblies: manufacturer-listed materials include aluminum, mild steel, stainless steel, carbon fiber and glass fiber.
- Selected rigid-plastic components: ABS, PVC and polycarbonate are listed examples. Verify adhesion and compatibility with the exact material grade.
- Outdoor bonding and repair: water, humidity and environmental resistance make ET503 a candidate for weather-exposed assemblies, subject to application testing.
- Wood and ceramic bonding: evaluate joint fit, preparation and clamping on representative parts.
- Finished visible joints: a dove-grey, sandable and paintable cured adhesive can support downstream finishing when the coating system is compatible.
Key Features
- Two-part epoxy with a 1:1 mix ratio.
- Typical fixture time of 6 minutes and working strength in 20 minutes at 23°C.
- Manufacturer-described strength, toughness and environmental durability.
- Resistance to water and humidity; validate the actual exposure conditions.
- Solvent-free formulation with a tack-free cured finish.
- Thixotropic flow behavior for controlled dispensing.
- Sandable and paintable after curing.
Technical Specifications
| SKU / product number | ET00503K050C0101 |
|---|---|
| Manufacturer / grade | Permabond / ET503 |
| Adhesive type | Fast-curing two-part epoxy |
| Mix ratio | 1:1 |
| Kit volume | 50 ml |
| Order quantity | Case of 25 dual-cartridge kits |
| Appearance | Pale dove grey |
| Mixed viscosity at 25°C | 15,000 cP / mPa·s, manufacturer flyer value |
| Flow behavior | Thixotropic |
| Maximum gap fill | 1 mm / 0.04 in |
| Fixture time | 6 minutes at 23°C, typical |
| Working strength | 20 minutes at 23°C, typical |
| Hardness | Shore D 50, manufacturer flyer value |
| Water absorption | 0.8% after 7 days at 25°C, manufacturer flyer value |
| Storage temperature | 5–25°C / 41–77°F |
| Cured finish | Tack-free; sandable and paintable |
| Example substrates | Selected metals, wood, ceramics, carbon-fiber and glass-fiber composites, ABS, PVC and polycarbonate |
| Reference document | 2024 Permabond ET503 product flyer, English Global edition |
The flyer provides guideline data, not a specification. Cure speed and bond performance depend on temperature, substrate, surface condition and joint geometry. The 1 mm maximum gap fill is not a recommendation for every assembly. Consult the current technical data sheet and manufacturer for full-cure timing and application-specific design limits.
Surface Preparation and Dispensing Guidance
Assess surfaces for contamination and prepare them appropriately. Permabond notes that abrasion and degreasing can improve results; select a preparation method compatible with the substrate. Use a compatible 1:1 dispensing system and suitable static mixer, and follow the manufacturer's application instructions. Establish a dispensing and alignment sequence that fits the adhesive's working window, then fixture the assembly until it can safely be handled.
Do not confuse reaching fixture or working strength with being ready for final service loads, chemical exposure or environmental testing. Verify the required cure schedule for the actual assembly. Read both component safety data sheets before handling.
Adhesive Selection Comparison
| Process requirement | ET503 selection guidance |
|---|---|
| Rapid strength development in an epoxy assembly | Evaluate the typical 6-minute fixture and 20-minute working-strength milestones at 23°C against the production sequence. |
| Long alignment or assembly window | Compare a longer-working-time grade rather than assuming a fast-curing epoxy will suit a complex assembly. |
| Large or uneven gaps | ET503's stated maximum gap fill is 1 mm. Consider another grade if the joint requires more, and validate the actual bond line. |
| Nylon bonding | Evaluate a nylon-focused grade such as TA4550 rather than assuming ET503's selected-plastic adhesion applies to all polyamides. |
| Water or humidity exposure | ET503 is a candidate based on manufacturer-described resistance. Qualify immersion, temperature, exposure duration and service loads separately. |
| Choosing between epoxy, acrylic and cyanoacrylate | Compare exact grades and joint requirements. Chemistry alone does not establish the best strength, gap fill, flexibility or chemical resistance. |
Frequently Asked Questions
How quickly does Permabond ET503 develop strength?
The flyer lists a typical fixture time of 6 minutes and working strength in 20 minutes at 23°C. Neither figure should be presented as full cure. Confirm the full-cure schedule and required strength before applying service loads.
What is the ET503 mix ratio?
ET503 uses a 1:1 mix ratio. Use dispensing equipment and a static mixer compatible with the actual cartridge system. Do not assume every epoxy gun or mixing nozzle will fit.
Which plastics are listed for ET503?
The manufacturer names ABS, PVC and polycarbonate among suitable candidates. That is not a blanket claim for all rigid plastics. Test the actual resin grade, additives and surface condition.
Can ET503 be used outdoors?
Permabond describes ET503 as suitable for outdoor applications and resistant to water and humidity. Validate the complete service environment, including temperature, mechanical loading and exposure duration, rather than treating this as unlimited weather or immersion resistance.
What is the maximum gap fill?
The product flyer lists 1 mm / 0.04 in. Actual bond-line selection depends on the materials and joint design; a maximum value is not necessarily the optimum working thickness.
Can ET503 cure in cold conditions?
Permabond reports that ET503 can develop excellent strength when cured at temperatures as low as 5°C. Do not apply the 23°C fixture and working-strength times to a 5°C process; verify an appropriate schedule with the manufacturer.
What is included in this product listing?
This SKU is a case of 25 × 50 ml dual-cartridge kits. Confirm dispensing guns, mixer fit and accessory inclusions separately before ordering for a new dispensing setup.
Manufacturer Documents
Download the Permabond ET503 product flyer (PDF). This two-page manufacturer flyer summarizes uses, properties and processing data; it is not the full technical data sheet.
Safety information: ET503 A-side safety data sheet and ET503 B-side safety data sheet.
Related Adhesive Options
Explore Permabond adhesives or browse the wider Adhesives collection. Select by actual substrate, cure schedule, gap, environmental exposure and dispensing requirements.
