Description
Loctite® HY 4090 2-part hybrid universal structural bonder
LOCTITE® HY 4090 is a high viscosity, off-white to light yellow gel. It opens completely new application areas in structural bonding – for the very first time combining instant adhesive properties with those for epoxies to give more striking benefits. Fixture time of 90 – 180 seconds and suitable for gaps up to 5 mm. Resistant to vibration, shock loads and impacts with the ability to bond dissimilar substrates. Best application results are achieved with LOCTITE® 50 ml Adhesive Mixing Nozzle (item 1826921), LOCTITE® 400 ml Adhesive Mixing Nozzle (item 1573135), LOCTITE® 96001 (item 267452) or LOCTITE® 983439 (item 218311).
Application
- It is designed to bond a variety of substrates including metals, most plastics and rubbers.
Characteristics
- Vibration, shock loads and impact resistance
- Temperature resistance up to 150 °C
- Gap filling up to 5mm
- High moisture resistance
- UV resistant allowing outdoor applications
Technical specifications
| Chemical Type (Part A) | Cyanoacrylate |
| Chemical Type (Part B) | Epoxy |
| Appearance (Comp. A) | Transparent colorless to straw colored liquid |
| Appearance (Comp. B) | Off-white to light yellow gel |
| Components | Two components – requires mixing |
| Viscosity | High |
| Fixture Time | <180.0 sec. |
| Gap Fill | 2.0 mm |
| Mix Ratio, by Weight | 1 : 1 |
| Shear Strength, Steel (grit blasted) | 17.0 N/mm² (2420.0 psi ) |
| Cure | Room temperature cure after mixing |
Hazard Identification (CLP)
Signal Word: Warning
Hazard Statements:
- H315: Causes skin irritation.
- H319: Causes serious eye irritation.
- H335: May cause respiratory irritation.
Supplemental Information:
Cyanoacrylate. Danger. Bonds skin and eyes in seconds. Keep out of the reach of children.
Precautionary Statements:
Prevention:
- P280: Wear protective gloves/eye protection.
- P261: Avoid breathing vapors.
Response:
- P337+P313: If eye irritation persists, get medical advice/attention.
- P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.
Disposal:
- P501: Dispose of contents/container in accordance with national regulation.
Other Hazards:
None if used properly.
This mixture does not contain any substances in concentrations ≥ the concentration limit for depiction in Section 3 that are assessed to be a Persistent, Bioaccumulative, and Toxic (PBT), very Persistent and very Bioaccumulative (vPvB) or Endocrine Disruptor (ED).
Henkel AG & Co. KGaA, Henkelstr. 67, 40589 Düsseldorf, GERMANY, +49 211 7970, [email protected], www.henkel.com







Cecilia –
No unpleasant smell, which I really appreciate. Excellent product, worth every cent. The quality pleasantly surprised me.
henry_sun –
Exactly as in the pictures. Simple and convenient.
Helena –
Very satisfied, better than expected. Better than anything else I’ve tried before. Looks even nicer in real life.
Roberto –
Fast shipping and good quality.
thomas_88 –
Practical and useful. Arrived on time and in excellent condition.
Noemi M. –
Super fast delivery, thank you. Packaging slightly damaged, but the product is excellent.
giacomo_s –
No complaints.
rafael_x –
Arrived without any defect. Well packaged and secure. Easy to assemble. Works just as advertised.
mara_sky –
Looks even nicer in person.
Felix R. –
Easy to assemble. No reason to complain.
Pascal –
No complaints so far. Easy to assemble.
alessia_roma –
No unpleasant smell, which I really appreciate.