Sikkens Cetol HLS Plus in Mahogany is a high-performance, solvent-borne woodstain that enhances and protects exterior timber with a rich, translucent mahogany finish. Designed for professional use and demanding outdoor environments, this woodstain offers deep penetration, strong UV resistance, and flexible durability to preserve wood from weathering and moisture.

This product can be used as either a base stain or a finishing coat, depending on the application and type of wood surface.

Key Features

• Low Build, Semi-Gloss Finish
  Delivers a natural look that enhances the wood grain while forming a breathable, water-repellent surface.
• Dual-Purpose Application
  • As a base stain for high-performance systems (e.g., under Sikkens Cetol Filter 7 Plus).
  • As a finishing coat on rough sawn or less exposed timber (e.g., fences or cladding).
• Deep Penetration
  Soaks into the timber structure for long-lasting adhesion and protection.
• Weather and UV Resistant
  Offers superior resistance to sunlight, rain, and frostideal for outdoor conditions.
• Rich Mahogany Colour
  A deep, reddish-brown tone that beautifully enhances woods natural appearance, suitable for both traditional and modern exterior finishes.
• Flexible Film
  Resists cracking and flaking by moving with the wood during seasonal changes.

Recommended Uses

• As a Finishing Coat:
  • Exterior softwood and hardwood substrates such as:
  • Timber cladding
  • Fascias and soffits
  • Fencing
  • Rough sawn wood
• As a Base Coat:
  • Windows
  • Doors
  • Exterior joinery
  • Other smooth planed wood surfaces

(Must be overcoated with a product like Cetol Filter 7 Plus)

• Exceptions:
  • Not to be used alone as a finish on hardwood timbers due to the higher density of such wood types, which may not allow for sufficient surface durability when uncoated.

Technical Specifications

• Colour: Mahogany
• Volume: 5 Litres
• Finish: Semi-gloss, translucent
• Base: Solvent-borne (oil-based)
• Boxed Weight: 5.1 kg
• Coverage: Approximately 1012 m per litre (depends on substrate and porosity)
• Drying Time:
  • Touch dry in 46 hours
  • Recoatable in 1624 hours
• Application Tools: Brush (natural bristle recommended), do not spray
• Clean-Up: Use white spirit or solvent-based brush cleaner
• Storage: Keep tightly sealed and store in a cool, dry place away from heat or flame

Preparation & Application

• Surface Preparation:
  • Ensure the surface is clean, dry, and free of dust, dirt, grease, and previous coatings.
  • Sand smooth-planed wood lightly for better adhesion.
• Application:
  • Stir well before and during use.
  • Apply with a good quality brush, following the grain of the wood.
  • Use 12 coats as a finish on rough timber, or 1 base coat followed by topcoats (e.g. Filter 7 Plus) on joinery.
• Maintenance:
  • Maintenance coats can be applied without full stripping. Clean and lightly sand prior to reapplication.

Frequently Asked Questions (FAQ)

Q1: Can I use this on hardwood as a final coat?
A1: No. Sikkens Cetol HLS Plus is not recommended as a standalone finish for hardwoods due to its low build. Use it as a base coat and apply a compatible topcoat like Sikkens Cetol Filter 7 Plus.

Q2: Can I use this product indoors?
A2: This product is formulated for exterior use only. The solvent-based formula is not safe for enclosed interior environments.

Q3: What is the difference between HLS Plus and Filter 7 Plus?
A3: HLS Plus is a low-build penetrating stain used for base or light-duty finish coats, while Filter 7 Plus is a medium-build topcoat offering stronger UV and weather resistance.

Q4: Do I need to sand between coats?
A4: Not always, but for best results, lightly sand smooth surfaces and between coats if more than 24 hours has passed.

Q5: How long will this last before needing maintenance?
A5: When used correctly with topcoat systems, the finish can last 45 years before needing recoating. In high-exposure areas, annual inspections are recommended.

Q6: Can I use it over previously painted surfaces?
A6: No. All previous paints and incompatible coatings must be removed to allow the stain to penetrate the wood effectively.

Q7: Whats the best application temperature?
A7: Apply between 5C and 30C. Avoid application in direct sunlight or during high humidity.

Summary

Sikkens Cetol HLS Plus 5L Mahogany provides reliable, professional-grade wood protection with a rich, deep tone and long-term resistance to the elements. Its dual-use versatility makes it a cornerstone product for both DIY and trade applications in exterior wood care systems.