LOCTITE HC 9872.1
Harmonization Code : 3214.10.00 | Putty and other mastics | Resin cements, caulking compounds and other mastics
Main features
- Low-density syntactic core costruction
- Excellent moisture resistance
- Compatible with 350°F epoxy prepregs
Product Description
LOCTITE HC 9872.1 AERO Syntactic Film is a toughened 350°F (177°C) curing, low-density epoxy syntactic core material supplied as a continuous film with controlled thickness, width, and density. Designed for aerospace composite structures, it is co-curable with a wide range of 350°F epoxy prepreg systems and incorporates a lightweight non-woven Kevlar® reinforcing carrier. The film offers excellent moisture resistance, pliability, tack, and drape for efficient layup and processing. Its low-density construction and co-curing capability make it suitable for lightweight sandwich structures and composite assemblies where weight reduction and moisture resistance are important design considerations.
Key features
- Low-density syntactic core construction: Maximum cured density as low as 42 lb/ft³ (673 kg/m³) for thicker films, supporting lightweight composite designs.
- Excellent moisture resistance: Engineered to provide moisture-resistant performance in demanding composite applications.
- Compatible with 350°F epoxy prepregs: Co-curable with a wide variety of 350°F (177°C) curing epoxy prepreg systems for streamlined composite manufacturing.
Applications / Suitable for
- Composite sandwich structures
- Aerospace composite panels
- Co-cured epoxy prepreg assemblies
- Lightweight structural core applications
- Weight-sensitive composite components
TDS, SDS & Technical Documents
Technical Specifications
Other Properties
Physical Properties
Additional Information
As-supplied / before-processing properties
Typical uncured and handling properties for the supplied syntactic film.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Gel Time | 5–15 | min | @ 350°F (177°C) |
| Volatiles | 1 maximum | wt% | 350°F (177°C), 60 min |
| Flexibility | Pliable and drapable | — | @ 77°F (25°C) |
| Working Life | 15 | days | @ 77°F (25°C) |
| Flow | 25–50 | % | 50 psi, 350°F (177°C) |
| Shelf Life | >12 | months | Stored at 0°F (-18°C) or below |
After-processing / final-state properties
Representative cured-property data for LOCTITE HC 9872.1 AERO.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Maximum Density | 42–49 | lb/ft³ | ASTM D792, dependent on film thickness |
| Tensile Strength | 4,800 | psi | ASTM D638, dry, 77°F (25°C) |
| Compressive Strength | 8,800 | psi | ASTM D695, dry, 77°F (25°C) |
| Shear Strength | 6,800 | psi | ASTM D2344, dry, 77°F (25°C) |
| Flatwise Tensile Strength | 3,300 | psi | ASTM C297, dry, 77°F (25°C) |
| Moisture Absorption | 7 | % gain | Equilibrium after immersion in 160°F (71°C) water |
