Kool Ray Liquid Shade Semi-Permanent Greenhouse Shading - 5gal Concentrate

Semi-Permanent White Shading That Wears Off on Its Own, 5gal Concentrate

Mechanical shading and ventilation systems solve the heat problem but come with real installed cost, and a shading coat that has to be scraped off by hand at season's end adds labor most growers would rather skip. Kool Ray Liquid Shade has been the low-cost alternative since 1953, a bright white spray-applied concentrate that lowers interior greenhouse temperatures and gradually weathers away with rain exposure as the season progresses.

Made from pure clays, minerals, and non-hazardous ingredients including titanium dioxide, limestone, and silica, this 5-gallon concentrate dilutes at the standard 1:8 ratio and is UV-resistant on most common glazing materials.

Key Features & Benefits

• Semi-permanent formula — adheres through the growing season and gradually weathers off with precipitation, letting in more light as the season transitions with no manual removal.
• Natural ingredient formula — made from pure clays, minerals, and non-hazardous components including titanium dioxide, limestone, and silica.
• UV-resistant — maintains its shading effect through the season while helping protect plastic glazing from UV-related breakdown.
• Trusted performance since 1953 — decades of use in commercial and hobby greenhouse operations.
• Compatible with common glazing — suitable for greenhouse glass, rigid plastic panels, and plastic films.

Who Should Use This

Greenhouse growers, from hobby setups to large commercial operations, who want a proven low-cost shading solution that applies easily and self-removes as growing conditions change over the season are the direct fit for this 5-gallon concentrate.

About Continental Products

Continental Products Company has manufactured coatings out of Euclid, Ohio since 1916, and the Kool-Ray shading line it introduced in 1953 remains its core greenhouse product.

Frequently Asked Questions

Will Kool Ray Liquid Shade wash off on its own?

Yes, it is a semi-permanent formula that gradually weathers off with rain and weather exposure over the course of the season. That built-in wear-off lets in progressively more light as temperatures moderate later in the year.

How much should I dilute Kool Ray before applying it?

The standard ratio is 1 part Kool Ray to 8 parts water. Coverage varies by application method and dilution, so consult the product label and adjust based on your specific shading needs.

Is Kool Ray safe to use on plastic greenhouse film?

Yes, it is UV-resistant and compatible with most standard plastic glazing materials. Regular use can even help prolong the service life of plastic glazing by reducing UV exposure and heat stress on the material.

What are the active ingredients in Kool Ray Liquid Shade?

It contains water (72%), titanium dioxide (10%), limestone (10%), amorphous silica (1%), and a small amount of solvent-dewaxed heavy paraffinic distillate (0.10%). The signal word on the label is Danger, so review the SDS before use.