Toughened and heat-resistant cyanoacrylates 731, 735, 737, 801, 802, 820, 825, 919, 920, 922 (up to 250 °C, MIL-A-46050C Type V)

Country: United Kingdom · Model: 731/735/737/751/801/802/820/825/919/920/922

Special cyanoacrylates in two groups. The toughened 731, 735 and 737 have a shear strength of 19–30 MPa and resist peel, impact and vibration. The heat-resistant 801, 802, 820, 825, 919, 920 and 922 work up to 250 °C.

Toughened: 731 — fast, maximum gap, 24–30 MPa; 735 — high peel and impact strength, 24–30 MPa; 737 — toughened black, 2000–4000 mPa·s, 19–23 MPa
Heat-resistant: 801 — up to 130 °C (10–15 mPa·s); 802 — up to 160 °C; 820, 825 (patented) — increased heat resistance; 919/920/922 — up to 250 °C
Viscosity 919/920/922: 2–4 / 70–90 / 1200–2000 mPa·s
Shear strength: 15–30 MPa

Request a quote All specifications

Technical specifications

Toughened	731 — fast, maximum gap, 24–30 MPa; 735 — high peel and impact strength, 24–30 MPa; 737 — toughened black, 2000–4000 mPa·s, 19–23 MPa
Heat-resistant	801 — up to 130 °C (10–15 mPa·s); 802 — up to 160 °C; 820, 825 (patented) — increased heat resistance; 919/920/922 — up to 250 °C
Viscosity 919/920/922	2–4 / 70–90 / 1200–2000 mPa·s
Shear strength	15–30 MPa
Specifications	919 — MIL-A-46050C Type V Class 1; 920 — Type V Class 2; 922 — Type V Class 3
Flexible	751 — 13 MPa

Specifications are taken from the manufacturer’s technical documentation. Updated 11/10/2026.

Description

The toughened grades contain an elastomeric modifier. Adhesive 731 is fast-curing, with maximum gap filling and a shear strength of 24–30 MPa. 735 is characterized by high peel strength and a viscosity of 100–200 mPa·s. Adhesive 737 became the first toughened cyanoacrylate, with a viscosity of 2000–4000 mPa·s and a shear strength of 19–23 MPa, while 751 is flexible, for flexible joints. Among the heat-resistant grades, 801 works up to 130 °C and 802 up to 160 °C, 820 and the patented 825 are intended for electronics and parts that heat up, and the 919, 920 and 922 line, rated to 250 °C, differs in viscosity, 2–4, 70–90 and 1200–2000 mPa·s respectively. Grades 919, 920 and 922 are listed in MIL-A-46050C as Type V, classes 1, 2 and 3.

How to choose

For impact and vibration, including on UAVs, the toughened 731, 735 or 737 are used, and the heat-resistant grades are used for engine compartments and zones near heat sources. The capillary 919 fills the thinnest joints, and 922 is intended for maximum gaps. Curing on passive surfaces is accelerated by the activators CSA, CSA-NF and QFS16. According to the selector, grades 919 and 922 are supplied to the Americas and Asia, so availability should be confirmed with the technical department.

Request a price and lead time

Toughened and heat-resistant cyanoacrylates 731, 735, 737, 801, 802, 820, 825, 919, 920, 922 (up to 250 °C, MIL-A-46050C Type V). We reply within one business day.

Or email office@usk.ua or call +38 (044) 339-50-20.

FAQ

Which cyanoacrylate withstands up to 250 °C?

The 919, 920 and 922 line. It differs in viscosity, 2–4, 70–90 and 1200–2000 mPa·s respectively.

What is a toughened cyanoacrylate?

An adhesive with an elastomeric modifier and increased resistance to peel, impact and vibration. The first such compound, 737, has a shear strength of 19–23 MPa.

Which military specifications do 919, 920 and 922 meet?

MIL-A-46050C as Type V, classes 1, 2 and 3 respectively.

What is the heat resistance of 801 and 802?

801 works up to 130 °C and 802 up to 160 °C. For higher temperatures, the 919, 920, 922 line is used.

What is adhesive 751 used for?

It is a flexible cyanoacrylate for flexible joints, with a strength of 13 MPa.