Harmonization Code : 3907.30.00.90 |   Polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms : Epoxide resins : Other
Main features
  • Reworkable
  • Conformal coating
  • Room temperature cure

Product Description

LOCTITE STYCAST PC 18M is a solvent based one component urethane coating which may be cured at room temperature. This material retains its light color after long exposure to elements and provides environmental and moisture protection.

LOCTITE STYCAST PC 18M is a reworkable, solvent resistant coating that is resistant to discoloration and is fluorescent under UV light. It displays no cracking and exhibits superior toughness and abrasion resistance. It is typically used as a PCB conformal coating and can operate continuously up to 110°C.


Cure Schedule

  • 2 hours @ 60°C , in an oven

Boards must be air-dried 30 to 45 minutes prior to curing

Product Family
4 liter Pail

Catalog Product

Unlike other products we offer, the products listed on this page cannot currently be ordered directly from the website.

Technical Specifications

General Properties
Shelf Life
Shelf Life
Shelf life is the amount of time after manufacturing that a product is guaranteed to retain its properties.

It differs vastly per product and it is based on temperature and storage conditions.

The properties can be guaranteed for the temperature and time range indicated on the TDS since those are the ones tested to be the best for the product.
Shelf Life @ 25°C 548 days
Solids 50 %
Specific Gravity
Specific Gravity
Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume.

For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless.
Physical Properties
Viscosity is a measurement of a fluid’s resistance to flow.

Viscosity is commonly measured in centiPoise (cP). One cP is defined as
the viscosity of water and all other viscosities are derived from this base. MPa is another common unit with a 1:1 conversion to cP.

A product like honey would have a much higher viscosity -around 10,000 cPs-
compared to water. As a result, honey would flow much slower out of a tipped glass than
water would.

The viscosity of a material can be decreased with an increase in temperature in
order to better suit an application
350 mPa.s