Lord 3135 Epoxy Adhesive Hardener - Part B
Lord 3135 A/B & 3135/7111 is an epoxy-based, roomtemperature-curing structural adhesive. Most metals, wood, glass, concrete and masonry, and various synthetic materials can be bonded with this adhesive. It provides high strength bonds, with a degree of flexibility in the bondline.
This polymer adhesive comprises two parts: the 3135 A Resin, and the curing agent, 3135 B (7111). These components should be thoroughly mixed in the recommended proportion just prior to use.
In general, this adhesive is characterized by
- Long pot life
- Low rate of shrinkage
- Excellent resistance to mechanical impact, and shock
- Good electrical resistance
- Excellent adhesion to a multitude of substrates
- Good machinability.
Lord 3135 A/B & 3135/7111 is an excellent adhesive for bonding “skins” to plastic or metal honey-comb cores, polyurethane foams, and phenolic and epoxy laminates.
This curing agent, 3135 B (7111), has a very low level of toxicity. It is possible to reduce the viscosity of the curing agent by heating to 65°C. However, warming the material will shorten the pot life of the mixed compound. The curing reaction commences as soon as the parts are mixed together.
Physical Properties (Uncured):
Viscosity (cps) @ 24°C
|20,000 to 50,000|
|Mix Ratio (by Weight)||1:1|
|Pot Life @ 25°C (Working Time - Hours)||1.5-3|
|Flash Point||Greater than 225°C|
Mechanical Properties (Cured):
|Chemical Solvent Resistance||Good to Excellent|
|Approximate Heat Distortion Point||95°C|
|Operating Temperature Limit||95°C|
|Hardness (Shore D)||82|
|Coefficient of Linear Thermal Expansion (in/in/°F)||3.2 X 10^-5|
Compressive Yield Point (psi)
Tensile Ultimate (psi)
Flexural Ultimate (psi)
T Peel @ 25°C
T Peel @ -106°C
5 lbs. per in.
1 lb per in.
Flatwise Tensile @ 25°C (psi)
Flatwise Tensile @ -73°C (psi)