Our Products
APOC 583 Armour‑Base is a water-based primer specifically developed for bitumen and other challenging substrates. The primer improves the adhesion of silicone roof coatings and prevents bleed-through, which is essential for long-lasting system performance.
This roof coating primer for asphalt substrates plays a critical role in commercial roof refurbishment projects. By creating a stable, sealed base layer, APOC 583 ensures that the silicone topcoat bonds correctly and cures evenly, particularly on aged bitumen roofs prior to applying APOC 576 Premium Silicone Roof Coating.
APOC 583 is typically specified on refurbishment projects where aged asphalt or bitumen substrates present a risk of bleed-through. By stabilising the surface before coating, the primer creates a reliable foundation for silicone systems, helping contractors achieve consistent results on commercial roofs. This step is critical in reducing application risk, improving finish quality, and ensuring long-term performance of the full roofing system.
APOC 583 is used on ageing asphalt and bitumen roofs prior to the application of silicone roof coatings. It is commonly specified on refurbishment projects where bleed-through risk must be controlled to ensure reliable adhesion and consistent coating performance.
The primer is applied after surface preparation and before detailing and coating stages. Repairs and reinforcement work are completed using APOC 581 Silicone Roof Patch and APOC Incredible Fleece-Top Reinforcement Tape to ensure a stable, well prepared surface prior to coating.
APOC 583 is used on asphalt and bitumen-based substrates to prevent bleed-through and ensure proper adhesion of silicone roof coatings.
Yes. It is specifically formulated to support silicone coating systems such as APOC 576.
It is most commonly used on existing roofs during refurbishment projects where substrate conditions require stabilisation.
