Medium Weight Bonding, Built for Machine Dispensing
With a High Stack formula that stays in position without slumping, plus low shrinkage, low exotherm and exceptional crush resistance, 3502HS delivers consistent, economical performance through drum pumping equipment
3502HS: Medium Weight Bonding Compound
A Premium Resin-Based Compound for Composite Part Assembly
SCIGRIP® ARJAY 3502HS is a premium resin-based bonding compound engineered for superior bonding performance and ease of application in composite part assembly. The ‘HS’ in 3502HS stands for High Stack, reflecting the compound’s ability to hold its position without slumping or running. Formulated with premium resins and engineered fillers, 3502HS is designed for exceptional performance when dispensed through drum pumping equipment. When bonding hulls, decks and liners, no significant loss in volume is expected at the pressures typically encountered in modern dispensing units — helping ensure economic benefits. ARJAY’s industry-recognized product quality guarantees consistent performance batch after batch.
Performance Benefits
- High Stack – resists slumping or running
- Machine dispensable
- Exceptional crush resistance
- Formulated with premium resins and fillers
- Low shrinkage and exotherm
- Low styrene content
- Consistent, economical performance in high-volume production
3502HS in Action
High Stack:
Stays Put on Just About Any Surface Formulated to hold its position without slumping.
Preparing to Mate a 38' Headliner to Deck
Ideal working properties for large-panel bonding applications.
Medium Weight Used in Filling Strakes
A go-to compound for cavity filling and strake work in hull construction.
Uses
| Application | Notes |
|---|---|
|
Hull and Deck |
Primarily used to bond stringer to hull and deck |
|
General Fiberglass Bonding |
Suitable across a range of composite assembly tasks |
|
Cavity Filling |
Low shrinkage minimizes voids |
|
Hull Liners |
Reliable bond for liner-to-hull assembly |
Availability
| Packaging | Size |
|---|---|
|
Pails |
5 Gal. / 19 L |
|
Drums |
55 Gal. / 189 L |
PRODUCT SPECIFICATIONS
| Property | Value |
|---|---|
|
Color |
Neutral |
|
Odor |
Styrene |
|
Texture |
Smooth |
|
Weight |
8.5 – 9.5 lbs/gallon |
|
Uncured Shelf Life |
6 months |
WORKING PROPERTIES (Gel Properties)
Sample mass: 150 g w/ 2.0% DDM-9 @ 77°F
| Gel Time | Interval | Fixture Time | Peak Exo |
|---|---|---|---|
|
45 – 75 min |
20 – 50 min |
50 – 100 min |
150 – 240°F |
VISCOSITY RANGE Measured on Brookfield DVI HB #6
Measured on Brookfield DVI HB #6
| RPM | Min CPS | Max CPS |
|---|---|---|
|
2 @ 77°F |
1,750,000 |
2,500,000 |
TYPICAL CURED PROPERTIES
| Test | ASTM Reference |
Typical Value (Imperial) |
Typical Value (Metric) |
|---|---|---|---|
|
Tensile Elongation |
D 638-82 |
3% |
3% |
|
Tensile Strength |
D 638-82 |
1,920 PSI |
13.2 MPa |
|
Tensile Modulus |
D 638-82 |
290,000 PSI |
1,999.5 MPa |
|
Flexural Strength |
D 790 |
3,500 PSI |
24.1 MPa |
|
Flexural Modulus |
D 790 |
260,000 PSI |
1,792.6 MPa |
|
Compressive Strength |
D 695-80 |
3,150 PSI |
21.7 MPa |
|
Lap Shear |
D 3163-84 |
1,285 PSI |
8.9 MPa |
|
Heat Deflection |
D 648-72 |
150°F |
— |
|
Linear Shrinkage |
D 2566-86 |
< 1% |
< 1% |
|
Shore D Hardness |
D 2240-86 |
65 |
65 |
