CRC Clear Urethane Seal Coat - Protectant 300g

CRC Clear Urethane Seal Coat is a one-component polyurethane conformal coating in a 300g aerosol. It dries to a clear film and is used to protect electrical and electronic components from condensation and moisture.

Used on printed circuit boards, cables and wires, terminal strips, motor windings, housings, bus bars and tools. It is classified as an extremely flammable aerosol; do not use it on energised equipment.

Where this product is used

• Protecting components from condensation and moisture
• Printed circuit boards
• Insulating cables and wires
• Terminal strips, screw connections and switch boxes exposed to atmospheric effects
• Electric motor windings, armature coils, commutator ends and transformer ends
• Housings, bus bars and a protective coating for tools

Features

• One-component polyurethane conformal coating
• Clear film (the red version is a separate CRC item, 2044)
• Humidity and salt spray resistance with heavy corrosion protection
• Protective resistance to shocks, abrasion and aggressive chemical atmospheres
• High dielectric strength, high surface and volume resistivity, and low dielectric constant
• Dries in approximately 1 hour, with 30 minutes between coats

Key specifications

Choosing the right option

The red version is CRC Red Urethane Seal Coat - Protectant 300g; both are conformal colours of the same coating.

For cleaning electrical parts before coating see CRC Electrical Parts Cleaner Quick Drying 400g.

See also: CRC Red Urethane Seal Coat - Protectant 300g, CRC Aerosol Lectra Shield Corrosion Inhibitor 300g, CRC Electrical Parts Cleaner Quick Drying 400g.

Using it

Directions: de-energise the equipment and do not use on energised equipment. Shake the can well before and during use. Mask any area that is not to be sprayed.

Spray from 30 to 45cm in light, even coats and allow each coat to dry before adding another, with 30 minutes between coats. After use, clean the valve by inverting the can and pressing the actuator until only propellant escapes.

Storage and handling

Do not puncture, incinerate or store above 50°C. Aerosol cans conduct electricity, so keep away from live electrical sources.

Limits and safety

Signal word Danger. It is classed as an extremely flammable aerosol (H222), a pressurised container that may burst if heated (H229), a cause of serious eye irritation (H319) and a cause of drowsiness or dizziness (H336). Repeated exposure may cause skin dryness or cracking. Transport: UN 1950, Aerosols, Class 2.1. Do not use on energised equipment. Read the safety data sheet before use.

Below 0°C for the aerosol as dispensed, and it is classed as an extremely flammable aerosol (H222).

The higher figure applies to the formulation without propellant.