UPF spray for clothes and clothing, protection your clothing from the sun, add UPF to clothing, add SPF to clothes, prevent sunburns, shield from sun, sun protective clothing, sun protect clothes

Add UPF Protection to Your Clothing

  • Improves UPF rating by 30+
  • Protects skin from UVA and UVB rays
  • Blocks UV transmission through clothing
  • Reduces sun exposure
  • No odor, no yellowing, no stiffening

No aerosols, no harsh chemicals, just performance

40 sq ft
80 sq ft
160 sq ft


8 oz
16 oz
32 oz
Ships Same / Next Day

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UPF Spray adds protection from harmful UV radiation

Ray Bloc UPF Fabric Spray for Clothing is a water based formula using advanced environmentally friendly technology to increase the UPF rating (30+) of clothes and to protect individuals from UV rays and skin cancer. Ray Bloc prevents UV radiation pass through and converts the UV rays to other forms of energy. Ray Bloc will not the change the look, color, texture or feel of the fabric. A gentle coating of the fabric is all that is necessary to provide protection from UV radiation. Ray Bloc UPF Spray for Fabric will last several washes and needs to be reapplied periodically for continued protection.

Unlike most other products, Ray Bloc UPF Fabric Spray is environmentally friendly and does not have a heavy chemical or solvent smell which can linger in the room for hours or days. Each, 8 oz and 16 oz container comes with a trigger nozzle for easy application and is ready to apply.

The American Academy For Dermatology (AAD) specifically encourage people to wear sun protective clothes as part of the efforts to prevent skin cancer:

Formulated for Fabric Types:

Specially formulated for use on all of today's natural and synthetic clothing fabrics

To learn more about UPF Ratings, click HERE

Superior On:

Formulated to add UPF protection to clothing, hats, umbrellas, jackets, blankets, and more!

Ambient Cure Formulation

Ray Bloc UPF Fabric Spray dries and bonds to the fabric to provide continuous protection from harmful UV rays. Simply spray on and let air dry but heat activation provides greater durability.

Earth Friendly Solutions

All of Trek7's products are water-based and contain no heavy solvents, harsh chemicals or aerosols. We strive to make solutions that are safe for the environment without affecting superior performance.

Customer Reviews

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"This has really helped with my sensitivity to the sun. Thank you for making a great and useful product."

-Submitted by Linda Robins

"I can finally wear the clothing I want instead of having to purchase those expensive UPF treated clothing "

-Submitted by Toni from California

"How did you guys come up with this? It works great to allow me to enjoy the outdoors more often! "

-Submitted by Edna Limon

Frequently Asked Questions


What size bottle do I need?

8 ounce will do up to 40 square feet. 16 ounce can do up to 80 square feet, 32 ounce up to 160 square feet, and 1 gallon up to 640 square feet depending on fabric type and application method. We use high output triggers so be sure not to over apply. Try a single coat first and test for waterproofing.

Will Ray Bloc affect my fabric?.

Ray Bloc will not affect the color, feel, or flexibility of the fabric and dries odor free!

Have A Question?


Simply click the button to the right and we'll respond as quickly as possible.

How To Apply

  1. Start with thoroughly clean and dry fabric free of soap residue. Follow the manufacturer;s directions to remove all soiling and residue
  2. Test in small inconspicuous area first
  3. Spray until item is evenly wet slightly overlapping sprays
  4. if drops form and remain on surface, wet a sponge with Ray Bloc and gently wipe drop. Do not allow large drops to dry
  5. Allow treated fabric to air dry or for better durability, heat activate using hand iron or heated dryer using highest heat allowed per manufacturer's label.


We normally ship same / next day from Southern California using USPS so you will receive your order promptly.

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