EPOXY COATING SYSTEM

IP Code No - DTD 5555, MSRR 9064, BSX 33, Type A

Pretreatment Etch
A two part pretreatment acid based primer with filiform corrosion resistance for suitably prepared substrates. It chemically pretreats the surface to provide maximum adhesion and corrosion resistance. Suitable for use with synthetic and two pack epoxy and p.u primers and a wide range of finishes. As a replacement alternative to several other products, it has similar properties of Def Stan 80-15, DTD 5555a, BSX 32.

Epoxy Strontium Chromate Primer
A two part corrosion inhibitive epoxy resin based primer resistant to all normal aircraft operating fluids. Resistant to filiform corrosion if used over pretreatment etch. It is suitable for indoor or out door use and overcoatable with various epoxy, acrylic and p.u.

Two Part Air Drying Epoxy Finishes
Two part air drying epoxy finish for interior and exterior use. Used by Rolls Royce as both a decorative and protective coating eg Matt black on fan frame composite casings and an air drying marking paint. Initially available in the range of colours and finishes listed, this range will probably be increased to comply with customer demand. Resistant to abrasion, corrosion and most aircraft operating fluids and chemical, this range is also used for painting instruments and touching up our Textron grey Stoving and Pratt & Whitney Canada Stoving engine systems.

The system has been designed to reduce confusion and therefore the least number of catalysts and thinners have been incorporated. The mixing ratios of base to catalyst may therefore vary.

Tested on steel and aluminium to the following minimum specification, actual performance will be in excess of the following:

• Resistant to 100 hours salt water fog
• Resistant to 100 hours dry heat at 1801C
• Resistant to 100 hours at 1501C lubricating oil
• Flexible round 60 mm handrail

Prior to application of the primer thorough cleaning of the substrate and the application of a conversion coating is vital. This can be the systems' two pack chromate etch primer or other process.

The full system process is as follows:

Applied by spray, but can be brushed. Pot life 8 hours.

Etch primer - air dry for 1 hour prior to over coating.

Epoxy primer - air dry for 4 - 16 hours prior to over coating or flash off for 30 minutes and then stove at 1251C for 1 hour.

If the primer has been applied more than 72 hours in advance of being overcoated, the surface must be wet flatted with 320 grade paper and have an additional light coat of primer applied to ensure the best intercoat adhesion for the system.

Top coats - apply one double track coat to give a dry film thickness of 20-32 microns. Air dry for minimum 4 hours or flash off for 30 minutes and then stove at 1251C for 1 hour.

Full chemical protection is achieved after 7 days.

Health & Safety

Before use please request, our latest Health and Safety Data Sheet