SCIGRIP / Arjay Technologies

Core Bonding Compound (CBC)

4001 is  flexible in more way than one.  Provides a strong bond that’s flexible enough to handle high seas, and with flexible gel times, works the way you want it to.

CBC: Stronger Cores, Flexible Gel Times

Our Core Bonding Compound (CBC) has become an industry favorite for its high tensile and flexural strength

One of the best things that came from our experience in the boat building industry was the creation of a compound that not only has a strong bond, but can flex under the pressure of a rough sea, and still hold everything together. That compound is our Core Bonding Compound (aka CBC). After years of refining, we’ve perfected the product to the point where many boat builders won’t build without it. It can be used to bed many types of cores, including PVC Foam, Balsa, Honeycomb, and more.

Performance Benefits

  • Flexible gel times
  • Works with nearly all types of cores
  • Increases flexural strength as much as 60%
  • Great for bonding large FRP laminates

Flexible Gel Times

CBC’s 40 minute gel time at 1.5% MEKP allows ample working time for nearly any application. Where longer gel times are required, the MEKP level can be reduced to as low as 0.5% when mixed properly.

SCIGRIP AMERICAS

4001 in Action

Increased Strength

Better core transitions increases flexural strength

FRP Laminates

Prepping hull with 4001 prior to bonding liner

Stays Put

Compound trowels easily and "stays put" on angles

Availability

Table Header REGULAR
4001 Core Bonding Compound
5 Gal Pail | 55 Gal Drum

TECHNICAL DATA

4001 Core Bonding

POLYESTER BONDING COMPOUND

RECOMMENDED FOR

RECOMMENDED FOR
Core Bonding FRP Laminates

WORKING TIMES (In Minutes)

GEL TIME Gel Time Interval Total Peak Exotherm
41 32 73 240℉

TYPICAL PHYSICAL PROPERTIES

RECOMMENDED FOR
Color White
Odor Styrene
Texture Smooth
Weight 6.5 lbs/gallon
Stability 4-5 Months

VISCOSITY

GEL TIME RPM µ Min µ Max
2 220,000 280,000
20 28,000 62,000

TYPICAL CURED PROPERTIES

GEL TIME Test Average Deviation
Tensile Elongation 4.2% 0.32%
Tensile Strength 2,260 PSI 43.2 PSI
Flexural Strength 10,700 PSI 856 PSI
Flexural Modulus 562,000 PSI 38,600 PSI
Compressive Strength 2,180 PSI 129 PSI
Lap Shear 1,260 PSI 28.5 PSI
Heat Deflection 150℉ 5.0℉
Linear Shrinkage <1%
Shore D Harness 65-70