AD Chemicals has more than 40 years of experience in developing, manufacturing and worldwide supply of a wide range of metal surface pre-treatment chemicals. Pre-treatment is an essential process on metal products that are coated to provide a durable and attractive finish. AD Chemicals draws knowledge and expertise from across the range of AD International chemical disciplines to provide customers with the best possible advice from a leader in its field. This results in robust and reliable processes that are efficient and cost effective.

AD is known in the market for its innovative and market exceeding chromium(VI)-free conversion coatings that meet or outperform hexavalent based treatments. Products are marketed under the “PreCoat” brandname. Many surface treatment operations desire certification by industry organizations, especially when applied to new and technically driven products. Customers have come to rely on AD Chemicals to assist in or lead the certification process. All products meet or exceed current market standards such as GSB, Qualicoat, Qualisteelcoat and MIL.

Latest innovations:

PreCoat Z31: Cromium(VI)-free multi-metal conversion coating, tailored to the high demands for duplex coating applicators (powder coating over hot-dip galvanized steel). Only European alternative that performs equal to chromium(VI). Meets the Qualisteelcoat and GSB standard. Winner of 2016 Dutch Innovation Award for surface treatments. Also Qualicoat(A-119) approved for aluminium.

PreCoat TVL: Multi-metal (iron, steel, galvanized) passivation to upgrade the iron phosphating process, enables corrosion protection over 1000 hours NSS. Exceeds Qualisteelcoat standard and has a Qualicoat (A-095) approval for aluminum.

PreCoat A34: Based on a high-tech aerospace technology. Chromium(III) based conversion coating that enables bare metal corrosion protection in combination with excellent paint adhesion and corrosion resistance, Qualicoat (A-126) approved.

PreCoat CF: Complete chromium-free conversion coating for aluminium. GSB and Qualicoat (A-021) approved. No rinse system.coversion coating PreCoat chromium-6 free