ZAR® Semi-Transparent Deck & Siding Stain may be used to treat wood that has been previously stained in a similar color with a semi-transparent deck or siding stain.
- Accents wood’s natural beauty and texture
- Protects against UV rays and extreme weather conditions
- Resists mold, mildew and extreme weather
- One coat application
- 4 Ready-mixed colors
- Tintable to 30 colors using our Light Tint Base or Dark Tint Base
- Sizes: quart, gallon, 5 gallon
- Coverage: on smooth surfaces, 300-400 square feet per gallon – on rough surfaces, 100-200 square feet per gallon
- Application tools: spray, synthetic bristle brush, applicator pad
- Dry time: 1-2 hours
- Coats: 1
Available in gallons:
Please note, colors are RGB web approximations of the actual shades.
Please note, colors are RGB web approximations of the actual shades.
How To / Videos
Proof of Performance: ASTM Testing
- ASTM D 16 – Standard Terminology for Paint, Related Coatings, Materials and Applications.
Do not pre-treat or use a water-repellent preservative. Test the wood for factory treatment by sprinkling a few drops of water on the surface. If water is readily absorbed into the wood, proceed. If not, do not apply ZAR® Semi-Transparent Deck & Siding Stain. Wait 2-3 months and then retest. The surface must be clean, dry and in good condition. Remove all mildew, dirt, dust, loose wood fibers, paint flakes, oil, and grease.* Repair or replace any loose, cracked, or warped boards. All mildew (dark, fuzzy or powdery deposits) must be removed with ZAR® Deck, Fence and Wood Cleaner or the following solution: one-third-cup heavy-duty laundry detergent to 1 quart household bleach to 3 quarts of warm water. Wear protective eye goggles and waterproof gloves when handling the solution. Apply with a scrub brush. Rinse thoroughly and allow it to dry before staining.
For Old Grayed Wood Exposed to UV (sunlight) for More Than 3 Months
Lightly sand or power wash the surface to remove the thin layer of degraded wood before applying ZAR® Semi-Transparent Deck & Siding Stain.* Clean the surface as instructed above. Always allow the wood to dry thoroughly after power washing and prior to application of the resin. Note: do not apply over clear finishes. Do not pre-treat or use a water-repellent preservative. Test the wood for factory treatment by sprinkling a few drops of water on the surface. If water is readily absorbed into the wood, proceed. If not, do not apply stain. Wait 2-3 months and then retest.
The surface must be clean, dry, and in good condition. Remove all mildew, dirt, dust, loose wood fibers, paint flakes, oil, and grease.* Repair or replace any loose, cracked, or warped boards. In warm weather, hose the surface with water and apply ZAR® Semi-Transparent Deck & Siding Stain while the surface is still damp to ensure color uniformity and minimize lap marks. All mildew (dark, fuzzy or powdery deposits) must be removed with ZAR® Deck, Fence and Wood Cleaner or the following solution: one-third-cup heavy-duty powdered laundry detergent to 1 quart household bleach to 3 quarts of warm water. Wear protective goggles and waterproof gloves while applying the solution. Apply with a scrub brush. Rinse thoroughly and allow it to dry before staining.
For Previously Painted or Stained Wood
Clean previously painted surfaces thoroughly. Remove all loose or flaking paint by scraping.
Apply only when air and surface temperatures are above 50° F. Do not thin. Stir thoroughly before and during application. Do not apply to decks if rain is expected within 24 hours. When using 2 or more containers of the same color, mix them together to ensure color uniformity. Avoid applying in direct sunlight. Test ZAR® Semi-Transparent Deck & Siding Stain on a sample piece of wood, or in an inconspicuous area, to see how the color will appear. This product may be sprayed, but application with a synthetic brush is recommended. If it’s sprayed, the coating should be dry brushed or back rolled for color uniformity. Apply using a brush, roller, foam pad applicator, or by spray. Apply one coat.
One coat will protect and beautify the wood while allowing the natural grain to show through. An additional coat may be needed on surfaces that are aged or extremely porous. On vertical siding, start at top on several boards and apply continuously across, breaking at doors, windows and corners. Be sure to maintain a wet edge.
Areas with harsh exposure to sun, weather or foot traffic will show wear more quickly than other surfaces. If this occurs, clean the affected areas and recoat as necessary.
Dispose of contaminated absorbent, container and unused contents in accordance with local, state and federal regulations.
UGL, United Gilsonite Laboratories (“UGL®”) warrants, subject to the limitations set forth herein, that this product, under normal use and proper storage, will be free from defects in material or workmanship and merchantable for a period of three (3) years on Decks and five (5) years on Siding from the original date of purchase. This limited warranty extends to the original consumer purchaser of the product only and is non-transferable. If this product is found to be defective by UGL within the warranty period, you will receive a replacement of the product or, at UGL’s option, a full refund of the purchase price upon presentation of proof of purchase (original sales receipt). This limited warranty excludes failure to apply the product to a properly prepared bare surface in accordance with UGL’s instructions provided with this product. UGL MAKES NO FURTHER EXPRESS WARRANTIES. THIS LIMITED WARRANTY EXCLUDES (1) LABOR AND ALL OTHER COSTS ASSOCIATED WITH THE APPLICATION OR REMOVAL OF THE PRODUCT OR ANY REPLACEMENT PRODUCT, AND (2) ANY INDIRECT, SPECIAL, EXEMPLARY, INCIDENTAL OR CONSEQUENTIAL DAMAGES. Some states do not allow the limitation or exclusion of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This limited warranty gives you specific legal rights and you may also have other legal rights which vary from state to state. To make a warranty claim please contact (with proof of purchase) the store where you purchased the product or contact UGL directly at 1-800-848-7253 (Consumer Hotline) or by mail at UGL Consumer Inquiry Department, P.O. Box 70, Scranton, PA 18501-0070
USAGE STATEMENT: Prior to use, carefully read the product label and follow the directions. For technical information, warnings, cautions, notices, and additional information, download and read the documentation available on this website.
* WARNING: If you scrape, sand or remove old paint, you may release lead dust. LEAD IS TOXIC. EXPOSURE TO LEAD DUST CAN CAUSE SERIOUS ILLNESS, SUCH AS BRAIN DAMAGE, ESPECIALLY IN CHILDREN. PREGNANT WOMEN SHOULD ALSO AVOID EXPOSURE. Wear a NIOSH-approved respirator to control lead exposure. Clean up carefully with a HEPA vacuum and a wet mop. Before you start, find out how to protect yourself and your family by contacting the National Lead Information Hotline at 1-800-424-LEAD or visit www.epa.gov/lead.