Industrial Adhesives

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SG4090

Toughened two-part cyanoacrylate-epoxy glue with max 5mm gap filling, high heat

Fast assembly of metals, plastics, rubber, wood, leather & fabric; bonds hard-to-stick PP/PE/Nylon/PVC with surface primer, ideal for parts with large gaps and long-term high-temperature & humid working conditions.

Ultra clear

Color

A:4000-7000 B:25000-40000

Viscosity(mPa⋅s)

180

Temperature(℃)

Description

SG4090 is two-component high-thixotropy hybrid adhesive combining cyanoacrylate and epoxy resin, cured by surface moisture. It features great gap filling capacity up to 5mm, excellent heat, damp, impact, vibration and peel resistance, and meets REACH & RoHS 2.0 eco standards.

Features

Hybrid cyanoacrylate & epoxy formula with toughened system
Max heat resistance up to 180℃, stable under high humidity
High thixotropy & viscosity, fills gaps up to 5mm perfectly
Outstanding shock, vibration and peel resistance after full cure
Compatible with porous, acidic absorbent substrates
Eco-friendly formulation complying with REACH & RoHS 2.0

Specification

Pre-Curing Properties (Part B)

Appearance: Creamy yellow gel
Chemical Type: Epoxy Resin
Specific Gravity (25°C): 1.06 g/ml
Viscosity (25°C): 25,000–40,000 cps
Fixture Time (25°C,50%RH): 120–180 s
Full Cure Time: 24 h

Cured Mechanical Performance (24h cure)

Sandblasted steel bond strength: ≥15 MPa
Sandblasted aluminum bond strength: ≥12 MPa
Galvanized & stainless steel bond strength: ≥9 MPa
Polycarbonate bond strength: ≥7 MPa
Nitrile rubber bond strength: ≥1 MPa
Tensile strength: ≥7 MPa; Elongation at break: ≥3.5%
Shore D Hardness: 65–70; Glass Transition Temp (Tg): 88℃
Thermal expansion: 70 ppm (below Tg), 175 ppm (above Tg)
PC strength retention: ≥85% after 500h aging (65℃/95%RH); ≥50% after 1 steam sterilization