UV Blocker Additive - Broad Spectrum Clear UV Protectant
Professional-grade broad spectrum UV protectant in a base of Pure Citrus Solvent that you can add to any Heritage Natural Finishes product. This clear additive provides comprehensive ultraviolet protection to extend the life and beauty of your wood finishes in outdoor applications.
Key Features & Benefits
- Broad Spectrum Protection: Blocks harmful UVA and UVB rays that cause fading and degradation
- Clear Formula: Won't alter the color or appearance of your finish
- Pure Citrus Solvent Base: Natural, plant-based carrier with pleasant citrus scent
- Universal Compatibility: Add to any Heritage Natural Finishes oil-based product
- Pre-Measured: Available in 1-gallon and 5-gallon treatment sizes at recommended rates
- Easy to Use: Simply shake or mix into finish and apply as normal
- Professional Grade: Same UV protection used in our Exterior Finish products
- Extends Finish Life: Significantly increases durability of outdoor finishes
Available Sizes
UV Blocker for 1 Gallon: Treats 1 gallon of finish at our recommended rate for optimal UV protection.
UV Blocker for 5 Gallons: Treats 5 gallons of finish at our recommended rate for optimal UV protection.
Ideal For
Converting interior finishes for exterior use, outdoor furniture projects, deck finishing, log homes and timber framing, exterior doors and trim, pergolas and arbors, fences and gates, outdoor structures, and any wood finishing project requiring UV protection.
Compatible Products
Add to any Heritage Natural Finishes oil-based product including Original Finish, Pure Tung Oil, Tung Oil Finish, linseed oil, custom finish formulations, and other natural oil finishes. Note: Our Exterior Finish and Deck Oil already contain UV protection and do not require additional treatment.
How to Use
For 1 Gallon Treatment:
- Start with 1 gallon of your chosen Heritage Natural Finish
- Shake the UV Blocker bottle thoroughly before adding
- Pour the entire contents into the gallon of finish
- Stir or shake thoroughly for 2-3 minutes to ensure complete distribution
- Your finish is now UV-protected and ready to apply
- Continue stirring periodically during use to maintain even distribution
For 5 Gallon Treatment:
- Start with a 5-gallon pail of your chosen Heritage Natural Finish
- Shake the UV Blocker bottle thoroughly before adding
- Pour the entire contents into the 5-gallon pail of finish
- Stir thoroughly for 3-5 minutes to ensure complete distribution
- Your finish is now UV-protected and ready to apply
- Continue stirring periodically during use to maintain even distribution
Application: Apply the treated finish according to standard application instructions for the base product. The UV Blocker does not change application technique, drying time, or finish appearance.
Why UV Protection Matters
Ultraviolet radiation from sunlight is the primary cause of wood degradation, color fading, and finish breakdown in outdoor applications. Without UV protection, natural wood finishes can begin to break down in just a few months of sun exposure. UV blockers work by absorbing and reflecting harmful UV rays before they can damage the wood or finish.
What UV Damage Looks Like:
- Graying or silvering of wood surface
- Color fading and loss of richness
- Finish chalking and breakdown
- Wood fiber degradation
- Reduced water resistance
With UV Protection: Your finish maintains its color, the wood stays protected, and the finish lasts years instead of months. UV protection is essential for any exterior wood application exposed to direct sunlight.
Pro Tips
- Mix UV Blocker thoroughly into finish before application - settling can occur
- Stir periodically during application to maintain even distribution
- UV protection is most critical on south and west-facing surfaces with direct sun exposure
- Combine with proper application technique (thin coats, thorough wiping) for best results
- Reapply finish annually or as needed to maintain UV protection
- For maximum protection, consider adding both UV Blocker and Mildewcide (sold separately)
Technical Specifications
- Product Type: Broad spectrum UV absorber additive
- Base: Pure Citrus Solvent (d-limonene)
- UV Protection: UVA and UVB blocking
- Appearance: Clear liquid
- Treatment Capacity: 1 gallon or 5 gallons (depending on size purchased)
- Mixing Ratio: Pre-measured for optimal protection
- Compatibility: All Heritage Natural Finishes oil-based products
- Shelf Life: 2 years when stored properly
- Storage: Store in cool, dry place away from direct sunlight
- Origin: Made in USA
- Weight: 0.88 lbs (1-gallon treatment)
- SKU: UVA-1g
Safety Information
Handling: Wear gloves and eye protection when mixing. Use in well-ventilated area. Keep out of reach of children and pets.
Storage: Store in original container with lid tightly closed. Keep away from heat and open flames. Store away from direct sunlight to preserve UV-blocking compounds.
Disposal: Dispose of according to local regulations for chemical additives.
Dosage & Coverage
Use entire bottle for the specified gallon amount. Do not use partial amounts or attempt to treat different quantities - the formula is pre-measured for optimal UV protection at the specified ratio.
For custom quantities: Contact Heritage Natural Finishes for appropriate additive amounts for non-standard batch sizes.
Professional Results
This is the same broad spectrum UV protectant used in our popular Exterior Finish and Deck Oil products. Now you can add professional-grade UV protection to any of our finishes, giving you complete flexibility in your exterior finishing projects while maintaining the natural, eco-friendly qualities you expect from Heritage Natural Finishes.
Composition
We disclose ALL ingredients that we use. Heritage Natural Finishes contain NO petroleum products, or metallic drying agents whatsoever! We use only the highest quality ingredients from the most sustainable sources possible. What you see here is what you get. If you have any questions, you can always call us!
Tung Oil
100% pure with no additives. This is the highest quality tung oil available; drying harder and forming a more durable finish than linseed oil alone. Both oils are dryer-free and slightly heat-treated (polymerized).
Special Aged Linseed Oil
Obtained from flax grown in the Red River Valley of the U.S. and Canada. It is purified and refined by natural oxidation and blowing, and dries as clear or clearer than tung oil, with none of the characteristic discoloration that is typical of hardware store varieties. No other finishing oil penetrates as deeply into wood.
Beeswax
Only filtered, chemical and bleach-free white beeswax wax is used. Beeswax adds visual depth of grain, smoothness, and elastic durability. Beeswax forms a skim coat that keeps the finish on the wood, slowing the evaporation of the solvent, which gives the oils more time for absorption.
Pure Citrus Solvent
This is the purest form of citrus turpenes (solvent), extracted from cold-pressed orange peel oil. This is the only solvent used in our finishes, and is also sold separately for thinning product or cleaning up. Pure Citrus Solvent is a safer alternative to mineral spirits, and other harsh solvents and can be used the same way.
Pine Rosin
Gum rosin extracted from pine sap and separated from the turpentine. This is the gum rosin found in heart pine, giving the wood its hardness and durability. We use only top grade, crystal-free, water-white rosin. No synthetic resins are used.