Permabond 712 Water-Resistant Cyanoacrylate Adhesive, 1oz Bottle, Case of 10
Permabond 712 Water-Resistant Cyanoacrylate Adhesive, 1oz Bottle, Case of 10
Permabond 712, SKU CA007120001Z0101, is a low-viscosity ethyl cyanoacrylate instant adhesive developed for bonds exposed to water, heat and humidity. It combines rapid room-temperature cure with enhanced moisture resistance once bonded, making it a candidate for close-fitting assemblies where a conventional instant adhesive may lose strength during prolonged environmental exposure.
Supplied as a case of 10 × 1 oz bottles. The solvent-free adhesive is transparent and colorless, requires no mixing or heat cure, and can be dispensed by hand or with suitable automatic equipment. Water resistance describes the cured bond; it is not a claim that the adhesive should be applied underwater.
Best Uses / Applications
- Rubber seals, gaskets and valve seatings: evaluate adhesion to the actual elastomer formulation, including its additives and service exposures.
- Humidity-exposed industrial assemblies: consider close-fitting metal, plastic and rubber joints that must retain performance under moisture exposure.
- Appliance components: manufacturer-listed examples include refrigerators and washing machines; qualify the joint against its actual temperature, fluids and loads.
- Automotive interiors and sports equipment: evaluate rapid assembly and environmental durability on representative parts.
- Sensor attachment: Permabond describes a steel-pipe sensor application in hot, humid oil-and-gas environments. Treat it as an application example, not approval for every sensor or service condition.
- Jewelry and embellishments: transparent, colorless bonding can be useful where the adhesive line is visible; validate appearance and compatibility.
Key Features
- Water- and humidity-resistant ethyl cyanoacrylate.
- Low viscosity: 100 mPa·s / cP at 25°C.
- Rapid fixture, typically 3–25 seconds depending on substrate.
- Maximum gap fill of 0.15 mm for close-fitting joints.
- Room-temperature cure with no mixing or heat cure required.
- Transparent, colorless and solvent-free.
- Manufacturer-reported resistance to prolonged water, heat and humidity exposure after bonding.
Technical Specifications
| SKU / product number | CA007120001Z0101 |
|---|---|
| Brand / grade | Permabond / 712 |
| Chemistry | Ethyl cyanoacrylate instant adhesive |
| Bottle size | 1 oz |
| Packaging | Case of 10 bottles |
| Appearance | Transparent, colorless |
| Viscosity at 25°C | 100 mPa·s / cP |
| Maximum gap fill | 0.15 mm / 0.006 in |
| Fixture time | 3–25 seconds, depending on substrate |
| Full strength | 24 hours, manufacturer flyer guideline |
| Service temperature | 120°C / 248°F, manufacturer flyer listing; verify suitability under actual load and exposure |
| Storage temperature | 2–7°C / 35–45°F |
| Example substrates listed in flyer | ABS, acrylic, aluminum, EPDM, mild steel, nylon 6, nylon 6.6, polycarbonate, phenolic, PVC and rubber |
| Processing | No mixing or heat cure; manual or suitable automatic dispensing |
| Reference | Permabond 712 Flyer, Global EN 022724 |
Flyer data are guidelines, not specifications or guarantees for every assembly. Substrate formulation, joint design, surface condition and environmental exposure affect performance. Fixture time is not full strength.
Understanding Water and Humidity Resistance
The manufacturer reports 75% strength retention after 1,000 hours in 60°C water and 90% retention during 85°C / 85% relative-humidity testing. The flyer states that its lap-shear specimens were prepared and cured for 72 hours at 23°C before aging, then tested at 23°C. These controlled test results are not a prediction of service life for every bonded assembly and do not mean there is no strength loss.
Qualify the actual joint for immersion duration, fluid composition, temperature and mechanical loading. Water resistance does not establish leak-tight sealing, pressure containment, freedom from whitening or universal chemical compatibility.
Application and Preparation Guidance
Use 712 for appropriately prepared, close-fitting joints within its stated gap capability. Establish a controlled dispensing and alignment sequence before relying on its fast fixture. Follow current manufacturer application and safety instructions for the substrates and equipment involved.
Do not add primers or activators as a default preparation step. Permabond specifically warns that products such as POP Primer or QFS16 can interfere with 712's water-resistant properties. If a difficult substrate would normally call for a primer, consult Permabond for a validated bonding process rather than assuming a generic cyanoacrylate primer is appropriate.
Selection Comparison
| Requirement | How to evaluate Permabond 712 |
|---|---|
| Fast bonding with water or humidity exposure after cure | 712 is designed for this combination. Test the complete assembly under its actual service conditions. |
| Large gaps or uneven mating surfaces | 712 is low viscosity with a maximum gap fill of 0.15 mm. Compare a grade with suitable gap capability rather than forcing an instant adhesive into a wide joint. |
| Long alignment time | A 3–25-second fixture time may be too fast. Compare a slower process where positioning requires more time. |
| PE, PP, PTFE or another difficult plastic | Do not automatically use a primer with 712. Request substrate-specific process advice or compare a different adhesive system. |
| Choosing an epoxy or acrylic instead | Compare exact grades for substrate fit, working time, gap, flexibility and exposure. Adhesive chemistry alone does not determine the best choice. |
Frequently Asked Questions
How is Permabond 712 different from a conventional instant adhesive?
712 is formulated for improved resistance to water, heat and humidity after bonding. Manufacturer aging tests demonstrate retained strength under specified conditions; they do not establish unlimited exposure resistance or suitability for every joint.
How quickly does it cure?
The flyer lists a 3–25-second fixture time depending on substrate, and 24 hours to full strength. Handling strength is an early milestone, not permission to apply final loads or immerse a newly assembled part immediately.
Can I apply 712 underwater?
The cited manufacturer information supports water resistance of an already bonded and cured joint. It does not establish an underwater application procedure. Obtain manufacturer guidance for any submerged bonding process.
Should I use a primer or activator on difficult plastics?
Not as a default. Permabond warns that primers and activators, including POP Primer and QFS16, can interfere with water resistance. Ask for a validated process for the exact substrate instead of applying generic instant-adhesive advice.
Which substrates are listed?
The flyer lists examples including ABS, acrylic, aluminum, mild steel, EPDM, nylon 6, nylon 6.6, polycarbonate, phenolic, PVC and rubber. Material grades and additives vary, so test representative production parts.
Does water resistance guarantee a clear bond without whitening?
No. The adhesive is transparent and colorless, but the cited information does not establish a universal no-blooming or no-whitening guarantee. Validate dispensing, cure conditions and appearance on the actual assembly.
How should the adhesive be stored?
The flyer specifies 2–7°C / 35–45°F storage. Follow the current manufacturer handling and storage instructions for the container and process in use.
Manufacturer Documents
Download the Permabond 712 product flyer (PDF). This manufacturer flyer summarizes applications, properties and environmental test results; it is not the full technical data sheet.
Download the Permabond 712 safety data sheet (PDF). Review safety information before handling.
Related Adhesive Options
Compare Permabond adhesives or explore the broader Adhesives collection using the actual substrates, joint gap, process window and service environment.
