MAS Low Viscosity Resin Sytem
- Item #: 573001-2-5
MAS Slow Hardener is a highly-regarded epoxy resin hardener that's phenol-free with modified amines. When used in conjunction with MAS Epoxy Resin it provides high reactivity and an extended gel time which allows for controlled and extended application periods. Special features exhibited by this product include blush free surfaces, good ultraviolet stability, smooth finishes in cured films, excellent osmotic resistance, and the ability to cure under high humidity. MAS Slow Hardener is intended for use with MAS Epoxy Resin and can be applied in a diverse range of conditions where increased working time is required. We highly recommend formulations of MAS Slow Hardener when large surfaces are to be coated or laminated. Slow formulation cures blush free and eliminates the need for time consuming wash downs during on-going laminations and repetitive build coats. The low viscosity of MAS Slow Hardener (200-250 poise) when mixed with MAS resin is ideal for fast wet-out of reinforcing fabrics.
- Extended gel time for controlled working & cure times.
- We recommend using our Low-Viscosity Resin/Slow for large surface coating & laminating.
30 minute pot life // 4 hour Working Time // at 70°F
MAS Medium Hardener is a polyamine blend intended for moderate reactivity and resistance to amine blushing. Moderate pot life, gel, and thin film set times provide advantages when filleting and fairing. MAS Epoxy/Medium mixed with a thickener, gels and sets quickly enough to avoid draining and sagging while still allowing ample flow time for controlled application periods. We recommend this hardener when "overnight" sandibility is more important than continuous laminating and open time (as provided by MAS Slow Hardener). MAS Medium will also provide a beautifully smooth, void free finish with great resistance to milking out during application and fogging in critical clear coating applications. MAS Medium's cure speed may be adjusted by the addition of MAS Fast or MAS Slow hardeners. The 2:1 mix ratio of resin:hardener should be maintained, regardless of hardener blend.
- Gel and thin set times are excellent for filleting and fairing.
- We recommend using Medium when overnight sanding is more important than open work time.
15 minute pot life // 3 hour Working Time // at 70°F
- Quickest ambient temperature hardener.
- We recommend using Fast for Hardware bonding, Spot Filling, Fairing, & High Strength Secondary Bonding.
10 minute pot life // 2 hour Working Time // at 70°F