This document describes the features and specifications of an epoxy coating called EP21ARLV. It has superior acid resistance and was tested in several acids for over 14 months with no failures. It is a low viscosity, two component epoxy that is ideal for small potting and encapsulation applications. It provides reliable electrical insulation and bonds well to many substrates including composites, plastics, ceramics, metals and rubbers.

1. 154 Hobart Street, Hackensack, NJ 07601 USA
+1.201.343.8983 • main@masterbond.com
www.masterbond.com
LOW VISCOSITY
COATING
features
SUPERIOR
ACID RESISTANCE
EXCELLENT ACID RESISTANCE PROFILE
Tested in the following acids for over
14 months at 75°F with no reported failures
TWO COMPONENT EPOXY
EP21ARLV
Sulfuric Acid 70%
Hydrochloric Acid 10%
Nitric Acid 10%
Phosphoric Acid 10%
FREE FLOWING SYSTEM
Ideal for small potting and
encapsulation applications
Part A: 3,000-6,000 cps at 75°F
Part B: 4,000-6,000 cps at 75°F
RELIABLE
ELECTRICAL INSULATION
Volume resistivity
>1014
ohm-cm at 75°F
Dielectric strength of 440 volts/mil
at 75°F, for a 1/8 inch test sample
HIGH STRENGTH COMPOUND
Tensile strength
8,000-9,000 psi at 75°F
Shore D hardness
80-90 at 75°F
Tensile modulus
350,000-400,000 psi at 75°F
BONDS WELL to a variety of substrates
COMPOSITES
PLASTICS
CERAMICSMETALS
RUBBERS