CEMEDINE AX-215 Black Adhesive is a one-component flame-retardant elastic adhesive designed for electrical and electronic component fixing, insulation and waterproof sealing. The SX720B black formulation combines reliable elastic bonding, fast initial performance and UL94 V-0 flame resistance for professional electronics manufacturing and industrial assembly.

Table of Contents

Product Overview

CEMEDINE SX720B AX-215 is a black elastic adhesive supplied in a convenient 200g tube. It belongs to CEMEDINE’s SX720 series developed specifically for electrical and electronic equipment applications.

The product is based on acrylic-modified silicone resin technology and cures at room temperature through atmospheric moisture. No separate hardener, weighing or mixing process is required, making it convenient for both production lines and maintenance work.

CEMEDINE AX-215 Black Adhesive has a viscosity of approximately 42 Pa·s at 23°C. This standard-viscosity formulation provides easier flow and application compared with the higher-viscosity SX720BH version while still offering good bead control for electronic component fixing and sealing.

The black appearance is suitable for assemblies where a dark adhesive line is preferred or where the adhesive needs to visually blend with black housings, electronic modules or industrial components.

Key Features and Advantages

UL94 V-0 Flame-Retardant Performance

SX720B is UL94 V-0 recognized and is suitable for electrical and electronic applications where flame-retardant performance is an important requirement.

One-Component Moisture Cure

CEMEDINE AX-215 Black Adhesive is supplied ready to use and cures through moisture in the air at room temperature.

Because there is no need to mix resin and hardener, the product helps simplify production processes, reduce preparation errors and improve operating efficiency.

Siloxane-Free Formulation

The SX720 series is formulated without low-molecular-weight cyclic siloxanes. This makes it suitable for electronic manufacturing environments where contamination control and electrical contact reliability are important.

Flexible and Durable Bond

After curing, the adhesive forms an elastic layer that can help absorb vibration, mechanical movement and thermal expansion between different materials.

This characteristic is particularly useful for electronic components that may experience repeated heating and cooling cycles during operation.

Fast Initial Performance

The adhesive develops initial strength relatively quickly and provides reliable long-term durability after curing.

Applications

PCB Component Fixing

CEMEDINE AX-215 Black Adhesive is suitable for fixing capacitors, coils and other components on printed circuit boards.

The elastic cured layer helps stabilize components and absorb vibration or movement that could otherwise place stress on the electronic assembly.

Transformer and Power Supply Sealing

SX720B can be used for insulation sealing around transformers, power supplies and related electrical components.

Electronic Waterproof Sealing

The adhesive is suitable for waterproof sealing around electronic components, housings and electrical assemblies requiring moisture protection.

Industrial Electronic Equipment

It can also be used in control modules, electrical devices and industrial electronic equipment requiring flexible bonding and flame-retardant performance.

Suitable Applications

Typical applications include:

PCB component fixing
Capacitor reinforcement
Coil fixing
Transformer insulation sealing
Power supply sealing
Electronic waterproof sealing
Electrical enclosure sealing
Industrial control modules
Precision electronic equipment

Technical Information

Brand: CEMEDINE

Model: SX720B

Product Code: AX-215

JAN Code: 4901761524032

Product Type: One-Part Elastic Adhesive

Color: Black

Capacity: 200g

Package Type: Tube

Main Component: Acrylic-Modified Silicone Resin

Curing Type: One-Part Room-Temperature Moisture Cure

Viscosity: Approx. 42 Pa·s at 23°C

Density: Approx. 1.59 g/cm³

Skin-Over Time: Approx. 9 Minutes at 23°C

Tensile Shear Strength: Approx. 4.0 MPa

T-Peel Strength: Approx. 0.9 N/mm

Hardness: Shore A 78

Glass Transition Temperature: Approx. -60°C

Breaking Strength: Approx. 3.8 MPa

Elongation at Break: Approx. 40%

Volume Resistivity: Approx. 1.5 × 10¹² Ω·cm

Dielectric Constant: Approx. 7.0 at 100 Hz

Thermal Conductivity: Approx. 1.0 W/m·K

Operating Temperature Range: Approx. -60°C to +120°C

Flame Rating: UL94 V-0

Compliance: RoHS

Why Choose CEMEDINE AX-215 Black Adhesive

CEMEDINE AX-215 Black Adhesive combines flame-retardant performance, electronic-grade elastic bonding and convenient one-component processing in a compact 200g tube.

Compared with the high-viscosity SX720BH version, SX720B offers lower viscosity and easier flow, making it suitable for applications where the adhesive needs to spread more easily around electronic components and sealing areas.

Its combination of UL94 V-0 performance, siloxane-free formulation, durable elasticity and electronic sealing capability makes it a practical solution for PCB assemblies, transformers, power supplies and other electrical equipment.