Bondloc B638 High Strength Retaining Compound 50ml
Bondloc B638 urethane acrylate adhesive for structural retention (30 N/mm² strength). Resists -55°C to 150°C. 50ml.
The Bondloc B638 High Strength Retaining Compound is an engineered adhesive designed for high-strength retention under cyclic loading conditions, ensuring longevity and performance without fatigue even under sustained stress. Ideal for structural components, it excels in applications involving cylindrical parts under dynamic load, keys, splines, and close-tolerance structural tubing.
This urethane acrylate-based resin (green in colour) offers rapid fixture speeds—5 minutes without activator, or under 5 minutes with activator—making it efficient for both maintenance and manufacturing applications. It delivers superior gap-filling capability (0.2mm) and maintains high static shear strength (30 N/mm²) once fully cured (24 hours).
With a temperature resistance range from -55°C to +150°C and a shelf life of 12 months, the B638 is both durable and reliable for industrial use. Its high viscosity (2500 cps) ensures ease of application, while a flash point above 85°C enhances safety during handling.
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- +22
- Cylindrical parts under dynamic load
- Keys and splines
- Structural tubing with close tolerance fits
- Industrial assembly requiring fatigue-resistant bonds
- Resin: Urethane Acrylate
- Colour: Green
- Fixture Speed (No Activator): 5 mins
- Fixture Speed (With Activator): <5 mins
- Viscosity: 2500 cps
- Gap Fill: 0.2mm
- Flash Point: >85°C
- Shelf Life: 12 months (min)
- Specific Gravity: 1.08
- Max Operating Temperature: -55°C to +150°C
- Full Cure Time: 24 hours
- Static Shear Strength: 30 N/mm²
Hazard information
P271
Use only outdoors or in a well-ventilated area.
P501
Dispose of contents/container to …
H315
Causes skin irritation.
H318
Causes serious eye damage.
H335
May cause respiratory irritation.
P280
Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
P261
Avoid breathing dust/fume/gas/mist/vapours/ spray.
P273
Avoid release to the environment.
P305 + P351 + P338
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing
P310
Immediately call a POISON CENTER/doctor/ …
P302 + P352
IF ON SKIN: Wash with plenty of water/…
P405
Store locked up.
P403 + P233
Store in a well-ventilated place. Keep container tightly closed.
GHS07
Health hazard/Hazardous to the ozone layer
P312
Call a POISON CENTER/doctor/…/if you feel unwell.
H317
May cause an allergic skin reaction.
P264
Wash … thoroughly after handling.
GHS05
Corrosive
P272
Contaminated work clothing should not be allowed out of the workplace.
P321
Specific treatment (see … on this label).
P333 + P313
If skin irritation or rash occurs: Get medical advice/attention.
P362 + P364
Take off contaminated clothing and wash it before reuse.
P304 + P340
IF INHALED: Remove person to fresh air and keep comfortable for breathing.
H413
May cause long lasting harmful effects to aquatic life.
P332 + P313
If skin irritation occurs: Get medical advice/attention.
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