SCIGRIP / Arjay Technologies

7121 for Critical Bonds

Our multi-purpose Vinyl Ester compound has become the go-to compound for the marine industry’s most important structural bonds

Superior Strength & Versatility

Best known for its performance in critical bonding applications, Arjay's Vinyl Ester has become a strong, multi-purpose leader

Arjay Technology’s Vinyl Ester is specially formulated with Bisphenol-A based epoxy vinyl ester resin for superior physical properties when compared to polyester resins. This has made it the ideal choice for many marine applications where the bonds are structurally critical.

Performance Benefits

  • Easy to mix, apply, and use
  • Superior strength great for critical bonds
  • Our most versatile compound
  • Fire Retardant Solutions Available

Stronger Bond, Same Ease of Application

Arjay is known for the mix-ability and flexibility of our bonding compounds. Vinyl Ester continues that tradition by not only being easy to mix, but also easy to apply and use.

7121 in Action

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Stringer to Hull

Stringer assembly being lowered onto hull prepped with 7121

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Deck to Hull

7121 shown being used to form a strong bond between deck hull

stringers

Preparing Stringers

Prepping existing stringers with 7121 prior to placing liner

Availability

Table Header REGULAR FIRE RETARDANT
7121 Vinyl Ester Bonding Compound 7401 FRCL
5 Gal Pail 5 Gal Pail

TECHNICAL DATA

7121 Vinyl Ester

BONDING COMPOUND

RECOMMENDED FOR

RECOMMENDED FOR
Stringers to Hull Strake Filling
Liner to Hull Bulkhead Bonding /Filleting
Hull to Deck Joint Tabbing in Fittings
High vibration Areas Mold Flange Repair
Radius Compound Mold Structure Attachment

WORKING TIMES (In Minutes)

GEL TIME Gel Time Interval Total Peak Exotherm
35 30 65 285℉

TYPICAL PHYSICAL PROPERTIES

RECOMMENDED FOR
Color Tan
Odor Styrene
Texture Smooth
Weight 9.8 lbs/gallon
Stability 4-5 Months

VISCOSITY

GEL TIME RPM µ Min µ Max
2 960,000 1,250,000
20 100,000 195,000

TYPICAL CURED PROPERTIES

GEL TIME Test Average Deviation
Tensile Elongation 8.9% 0.14%
Tensile Strength 9,150 PSI 99.4 PSI
Flexural Strength 16,000 PSI 606 PSI
Flexural Modulus 877,000 PSI 38,100 PSI
Compressive Strength 2,200 PSI 213 PSI
Lap Shear 1,420 PSI 34.3 PSI
Heat Deflection 165℉ 5.0℉
Linear Shrinkage <1%