For industrial applications where tough, impact resistant laminates with chemical and heat resistance are essential.

Vapors harmful. Keep out of reach of children.

Hydrex® 33350-7 a pre-promoted, thixotropic, vinyl ester resin suitable for fabricating small to large FRP structures with high production rates at room temperature. Hydrex® 33350-7 resin is formulated for curing at room temperature with standard MEKP without foaming. 33350-7 is suitable for hand-lay-up or spray-up.

For fabrication of small to large FRP structures where high production rates at room temperature are required. Typical parts are: fiberglass tooling, marine or spa skin coats and or complete laminates.  

Not recommended for fuel storage.


Surfaces should be sanded and clean, dry and free of oil-based paint, oil, wax, dust and other contaminants. Do not wipe with tack cloth.


Fiberglass Hawaii Vinyl Ester Resins are formulated for use with Fiberglass Hawaii MEKP Catalyst. Fiberglass Hawaii Vinyl Ester Resin responds well to most initiators and, unlike conventional vinyl ester resins, does not foam when catalyzed with MEKP.


To avoid waste, mix only the volume of resin that can be applied in 10-15 minutes. Using a brush or squeegee, apply resin to surface. After fabric is thoroughly saturated use resin roller or squeegee to remove wrinkles, air bubbles, and any excess resin. This material will remain tacky and is not formulated to be sanded. When fabricating thick sections using Fiberglass Hawaii Vinyl Ester Resins, high levels of DMA should be avoided since they can result in a very high peak exotherm. Use of cumene hydroperoxide initiator has been shown to significantly reduce exotherm while developing a rapid cure in thick laminate sections.

Material Data Safety Sheets (MSDS)
To request product MSDS please email: Product Support

*Prices subject to change without notice.

Item Number Description Volume Price
RP00-HY3335004 Vinyl Ester Gallon $63.75
RP00-HY3335005 Vinyl Ester 5 Gal $182.70
Can of Vinyl Ester Laminating Resin