Henkel Loctite 438 High-Strength Flexible Bonding Adhesive
LOCTITE® 438 is a one-part, black, low-viscosity cyanoacrylate adhesive that cures by moisture and is designed for bonding metals, plastics, and rubbers.
Product Overview
LOCTITE® 438 is a rubber-toughened adhesive offering increased flexibility, peel strength, and enhanced shock resistance. It provides rapid bonding on a wide range of materials, including metals, plastics, elastomers, and porous substrates like wood and paper.
Technical Specifications
| Property |
Value |
Test Method / Conditions |
| Uncured Viscosity |
100 - 250 mPa·s (cP) |
Cone & Plate @ 25°C, 1000 s⁻¹ |
| Fixture Time on Nitrile Rubber |
< 5 seconds |
22°C / 50% RH |
| Lap Shear Strength (Steel) |
19 N/mm² (2,800 psi) |
ISO 4587, cured 24h @ 22°C |
| Tensile Strength (Steel) |
34 N/mm² (4,900 psi) |
ISO 6922 |
| Glass Transition Temperature (Tg) |
130 °C |
ISO 11359-2 |
| Volume Resistivity |
10 x 10¹⁵ Ω·cm |
IEC 60093 |
Key Features
This adhesive exhibits excellent physical and electrical properties after curing, with a high glass transition temperature of 130°C and very high volume resistivity, making it suitable for applications requiring electrical insulation. It shows good resistance to chemicals like motor oil and gasoline, retaining most of its initial strength after long-term aging.
Application Scenarios
LOCTITE 438 is commonly used in automotive parts assembly, electronic device manufacturing, appliance assembly, and sports equipment repair. It is particularly suitable for bonding components subject to vibration or with mismatched coefficients of thermal expansion.
Frequently Asked Questions
Who are we?
We are Shenzhen Huazhisheng New Material Technology Co., Ltd., a professional industrial adhesives and sealants supplier based in China since 2018. We serve global markets: Mainland China (60%), Southeast Asia (20%), North America (10%), and Europe (10%).
What products do you offer?
We supply high-performance adhesives and sealants from global leaders including: Cemedine, Dow Corning, Shin-Etsu, Araldite, and Momentive.
How do you guarantee product quality?
Quality assurance through:
- Mandatory pre-production samples approval
- Final inspection by QC team before shipment
- International certifications: SGS, UL, FDA, RoHS, REACH
Why choose us over other suppliers?
- Reliable Supply: Authentic products from top manufacturers
- Expert Support: Technical guidance for product selection
- Global Compliance: Certifications meeting target market standards
- Efficient Service: Customized solutions & professional support
What services do you provide?
- Delivery: EXW/FOB/CIF
- Payment: USD/EUR/CNY/HKD via T/T, L/C
- Support: Technical consultation & logistics coordination
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