At Platinum Chemicals, one of the UK’s most established resellers of professional timber treatments, we offer a comprehensive range of Exterior Wood Treatments specifically developed to protect, preserve, and enhance wood in outdoor environments.

This includes pigmented wood finishes, deep-penetrating preservatives, woodworm and fungal treatments, as well as advanced water repellents. Whether you’re maintaining fencing, cladding, decking, or outdoor furniture, these high-performance solutions are designed to prolong the lifespan of timber while retaining its natural beauty and structural integrity.

Reliable Wood Protection for Outdoor Environments

Exterior timber is constantly exposed to the harshest of elements—UV radiation, rain, frost, biological attack, and daily wear all contribute to the degradation of wood over time. Our range of Exterior Wood Treatments has been selected to combat these threats, offering everything from UV-stable pigmented coatings to deep-acting biocidal wood preservatives.

For general protection and aesthetic enhancement, products like Sovereign Timber Treatment and Cromar Exterior Wood Treatment deliver colour and water repellency while allowing the natural grain and texture of the timber to show through. These solvent-based treatments are quick-drying, low in odour, and available in a choice of tones, making them ideal for outdoor joinery, fencing, garden structures, and decorative features.

Deep Penetrating Woodworm and Rot Treatments

Outdoor timber is especially vulnerable to wood-boring insects and rotting fungi. We supply a number of professional-grade preservatives specifically designed to prevent and control these issues in exposed wood. Products such as Cromar Universal Woodworm & Dry Rot Killer, Lignum Pro D156, and ACS Lignotec Woodworm & Rot Treatment are formulated to penetrate deep into the timber, ensuring comprehensive protection below the surface.

These treatments provide long-lasting resistance against both active infestations and future attacks from woodworm and fungal decay, including dry and wet rot. Several options are approved for professional, amateur, and industrial use, with fast absorption, low odour, and compatibility with future coatings or paints.

For more specialist applications, ACS Boracol 5Rh and ACS Boracol 10 offer a high level of biocidal protection in a boron-based, non-staining, and virtually odourless formulation. Designed for demanding environments such as yacht decks, exposed façades, and masonry timbers, these treatments also inhibit mould, moss, algae, and lichen—ensuring that both timber and adjacent surfaces are kept free from biological growth.

Water Repellents for Long-Lasting Surface Protection

Water ingress is one of the leading causes of timber deterioration outdoors, contributing to swelling, splitting, decay, and fungal growth. To combat this, we offer innovative surface protection solutions such as ACS HydroBar Woodbead. This water-based repellent penetrates and binds within the timber, creating a hydrophobic layer that sheds water and enhances the beading effect on the surface. Suitable for bare softwood and hardwood, it delivers excellent longevity and prevents water-related damage without altering the wood’s appearance.

For users looking for both decorative and protective benefits in one product, pigmented options such as Sovereign Timber Treatment Brown or Cromar’s range of tinted treatments offer UV-resistance and colour retention alongside water repellency, helping timber surfaces remain both functional and visually appealing over time.

Professional-Grade Wood Care for All Exterior Applications

From garden furniture and fences to soffits, window frames, and decking, our Exterior Wood Treatments range is suitable for a wide variety of timber structures and surfaces. Whether you’re preserving heritage buildings, maintaining coastal properties, or simply protecting everyday outdoor timber, this range includes proven solutions trusted by contractors, builders, and joiners across the UK.

Every product in our collection is selected for its professional quality, regulatory compliance, and proven performance in British outdoor conditions. With solvent and water-based options, low odour formulations, and compatibility with overcoating systems, our range provides flexible solutions to meet your timber protection requirements.

At Platinum Chemicals, we offer extensive expertise and supply chain reliability to support projects of all scales, backed by fast UK-wide delivery and access to industry-leading wood preservation brands.