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 PROPERTIES

GEL TIME Gel Time Reaction Time Fixture Time Peak Exotherm
41 min
32 min
73 min
240℉

TYPICAL PHYSICAL PROPERTIES

RECOMMENDED FOR
Color
White
Odor
Styrene
Texture
Smooth
Weight
6.6 lbs/gallon
Shelf Life
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