The Sherwin-Williams Company now offers a full line of quality, high-performing primers that are free of chrome and lead hazards for use on aircraft. These priming options meet applicator needs for commercial, military or general aviation aircraft and meet three key requirements – faster priming, protection of the aircraft substrate and providing key environmental benefits.
These products provide the painter a choice in environmentally supportive primers, including the latest Chrome Hazard Free Epoxy Primers, Epoxy Primer Surfacer and Urethane Primer. These new low-VOC (2.9 lb/gal, 348 g/L), two-component, corrosion-inhibitive products contain no hexavalent chromium (CR(VI)) and subsequently meet the Occupational Health and Safety Administration’s (OSHA) latest standard for occupation exposure. Sherwin-Williams is one of the first aircraft coatings manufacturers in the world to offer a complete line of primers to be free of chrome and lead hazards available to the aerospace market.
Each of these primers has undergone stringent testing and as part of systems with Jet Glo Express polyester urethane topcoat and SKYscapes polyurethane basecoat-clearcoat systems they have been qualified to SAE’s Aerospace Material Specification (AMS 3095).
Chrome Hazard Free Epoxy Primer (CM0483787)
This primer provides a long, wet edge that is ideal for applying to a large aircraft as part of a non-sand process and offers superior fluid and corrosion resistance. Designed to work with Sherwin-Williams Aerospace topcoats, it features quick dry to tape time, is VOC compliant (350 g/l) and meets regulatory standards by being free of chrome and lead hazards.
Chrome Hazard Free Primer Surfacer (CM0481968)
This chrome hazard free product provides versatile performance: it doubles as a primer and a surfacer so aircraft painters can eliminate costly steps in the painting process, as well as decrease the amount of time needed to complete a project.
This Primer Surfacer is a high-build product that flows out to an extremely smooth surface during application and often eliminates the need to sand and apply a “surface” coat between the primer and the topcoat. It also provides good sanding characteristics and excellent filling properties for composite substrates. VOC compliant (350 g/l), CMO481968 Primer Surfacer is also free of chrome and lead hazards.
Chrome Hazard Free Urethane Primer (CM0486707)
Used over a specially designed wash primer (Sherwin-Williams Aerospace CM0484646), this urethane primer provides an outstanding pre-treatment option to the chemical chromate filming process, i.e. Alodine or similar chrome systems. It is chrome and hazard free and eliminates wastewater stream for compliance.
This Urethane Primer is a low VOC, fast dry and easy-to-sand urethane primer that features excellent flexibility and high resistance to filiform, fluid and Skydrol. Providing high square feet coverage per gallon, it is a significant and economical alternative to other aluminum pre-treatments.
Chrome Hazard Free Flexible Epoxy Primer (CM0483790)
In addition to the superior fluid and corrosion resistance, this Chrome Hazard Free primer offers excellent flexibility and Skydrol resistance. It is qualified as part of a complete chrome hazard free certification to SAE’s Aerospace Material Specification (AMS 3095) with 3M Surface Pretreatment AC-131 and Jet Glo Express polyester urethane topcoat.
Chrome Hazard Free Quick Dry Primer (CM0483712)
Certified to SAE’s Aerospace Material Specification (AMS 3095) as part of a complete chrome hazard free system with SKYscapes polyurethane basecoat-clearcoat, this chrome hazard free primer provides excellent corrosion resistance. Utilizing a unique chemical technology, it features a short dry time with long pot life. It is qualified as part of a complete chrome hazard free certification to SAE’s Aerospace Material Specification (AMS 3095) with 3M Surface Pretreatment AC-131 and the complete SKYscapes system.