High Temperature Resistant Cyanoacrylate

Permabond introduces new high temperature resistant cyanoacrylate adhesives!

PERMABOND® 825 is a low viscosity cyanoacrylate adhesive that provides higher strength at high temperatures. Additionally, this fast-setting cyanoacrylate bonds metals, rubbers, plastics, and more. In fact, Permabond 825 resists up to 392°F (200°C) and has excellent retention of strength during thermal aging. PATENTED TECHNOLOGY

Features and Benefits

• Strong bonds that resist up to 392°F (200°C)
• No secondary or post-cure required to achieve temperature resistance
• Low viscosity 120 cPs/mPa.s
• Tolerates stresses at high temperature
• Does not require zero-gap – better thermal stability with a larger gap
• Higher strength retention after thermal aging
• 2500 psi (17 MPa) bonds to mild steel at 77°F (25°C)
• 600 psi (4MPa) bonds to mild steel at  300°F (150°C)

Typical ethyl cyanoacrylates resist up to 180°F (82°C) with special grades resisting as high as 250°F (120°C). Generally, methyl cyanoacrylates resist 195°F (90°C).  Specialty allyl cyanoacrylates can resist up to 482°F (250°C). However, these require a post-cure or secondary heat cure to achieve the temperature resistance.

Cyanoacrylate adhesives are single component adhesives that polymerize rapidly when pressed into a thin film between parts. The moisture adsorbed on the surface initiates the curing of the adhesive. Strong bonds are developed extremely fast and on a great variety of materials.

Directions for using Permabond 825:

1) Apply the adhesive sparingly to one surface.
2) Then, bring the components together quickly and correctly aligned.
3) Apply sufficient pressure to ensure the adhesive spreads into a thin film.
4) Do not disturb or re–align until sufficient strength is achieved, normally in a few seconds.

For assistance choosing the best high temperature resistant cyanoacrylate for your application, contact our technical support group.  For more information on Permabond 825, download the technical datasheet.