CS3202 B3 – Polysulfide Optical Sealing Compound

Technical Bulletin

Product Description

Meets A-A-59293

CS3202 is a thixotropic, curing type, adhesive sealing compound suitable for use by injection in bonding metal to metal in optical instruments or fire control instruments.

CS3202 is a two-part, polysulfide base compound which cures at room temperature to a flexible, resilient rubber with excellent adhesion to aluminum, magnesium, titanium, steel and glass. Mixed CS3202 is a thixotropic paste which is easily applied with an extrusion gun or spatula, but will not flow from vertical or overhead surfaces. The cured sealant is resistant to aircraft fuels, lubricants, oils, water and weather, and remains flexible at low temperatures.

Surface Preparation

To obtain good adhesion, remove all traces of oil, wax, grease, dirt, or other contamination. This is done by wiping with a clean oil free solvent.

Mixing Instructions

To 100 parts by weight of Part A add 10 parts by weight of Part B. Mix well to uniform consistency.

Application

CS3202 may be applied with a pressure gun or spatula within the specified application life. Specified application lives are based on the standard conditions of 77F and 50% relative humidity. For every 10F rise, the application life is reduced by one half. For every 10F drop, it is doubled.

Non Volatile Content, Min.

98%

Viscosity: Part A (Brookfield RVF Spindle #7 @ 2 RPM)

11,000 Poises

Vertical Flow

0.15 Inches

Tack Free Time (Hours)

16

Cure Time (Hours) To 30 REX

48

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