ANPIN AP-688W RTV Silicone 2.6L is a white one-component room-temperature vulcanizing silicone adhesive developed for bonding, fixing, insulating and sealing electronic and electrical components. The AP-688W(E) formulation offers fast surface drying, excellent adhesion to many PCBA materials, flame-retardant performance and reliable operation over a wide temperature range.

Table of Contents

Product Overview

ANPIN AP-688W(E) belongs to the AP-688 series of RTV silicone rubber adhesives manufactured by Shenzhen Anpin Silicone Material Co., Ltd.

The material is a condensation-type one-component silicone rubber that begins curing after exposure to moisture in the surrounding air.

During the curing process, the silicone undergoes cross-linking and releases small alcohol molecules as normal reaction byproducts.

No separate hardener, catalyst or A/B mixing process is required.

After curing, ANPIN AP-688W RTV Silicone 2.6L forms a flexible and durable silicone elastomer with excellent adhesion to metals, plastics and ceramics.

The white 2.6L industrial package is especially suitable for production lines, dispensing systems and higher-volume electronic assembly applications.

Key Features and Advantages

Fast Surface Drying

AP-688 is designed to develop a surface skin quickly after application.

Fast surface drying can improve handling efficiency and reduce waiting time during electronic component assembly and fixing.

Strong Adhesion to PCBA Materials

ANPIN specifically identifies strong bonding performance to various materials commonly found on PCBA assemblies.

This makes AP-688W(E) suitable for fixing electronic components and reducing movement caused by vibration or mechanical shock.

One-Part RTV Technology

ANPIN AP-688W RTV Silicone 2.6L is supplied ready to use.

No weighing or mixing is required, which simplifies production processes and helps reduce operator errors.

Wide Temperature Resistance

The official AP-688 product information states that the cured silicone can be used continuously from approximately -50°C to +200°C.

This makes it suitable for electrical and electronic equipment exposed to both low and elevated operating temperatures.

UL94 V-0 Flame Retardancy

ANPIN lists the AP-688 formulation as meeting UL94 V-0 flame-retardant requirements.

This is particularly valuable for power supplies, inverters, lighting equipment and electronic assemblies where flame resistance is an important material requirement.

Electrical Insulation

The cured silicone provides excellent electrical insulation performance.

ANPIN also highlights high voltage resistance and high volume resistivity for the AP-688 product family.

Moisture Resistance

The cured elastomer provides moisture protection and helps isolate sensitive electrical components from environmental humidity.

Flexible Silicone Protection

Unlike rigid adhesives, the cured RTV silicone remains elastic.

This flexibility helps absorb vibration, thermal expansion and mechanical stress around electronic components.

RoHS and REACH Compliance

ANPIN lists AP-688 as complying with RoHS and REACH environmental requirements.

Applications of ANPIN AP-688W RTV Silicone 2.6L

PCB and PCBA Component Fixing

AP-688W(E) is suitable for fixing sensitive electronic components mounted on printed circuit boards.

Typical components include:

Capacitors
Inductors
Transformers
Transistors
Power Components

Power Supply Assembly

ANPIN AP-688W RTV Silicone 2.6L can be used for insulation, bonding and sealing inside various AC and DC power supply assemblies.

Inverter Components

The adhesive is suitable for high-voltage sections and component fixing in inverter assemblies.

LED Power Components

ANPIN specifically identifies AP-688 for bonding and fixing LED power components.

T8 Lighting Components

The product can also be used for adhesive fixing of T8 lamp plugs and related lighting assemblies.

High-Voltage Electrical Components

The combination of insulation, flame retardancy and moisture resistance makes AP-688 suitable for selected high-voltage electrical parts.

Electronic Equipment

The large 2.6L package is particularly appropriate for automatic dispensing and repetitive production applications involving electronic devices and industrial equipment.

Application Method

Clean the bonding surfaces and remove dust, grease, oil and moisture.

Dispense AP-688W(E) directly onto the required bonding or sealing area.

Position the components before surface curing progresses.

Allow adequate exposure to atmospheric moisture during curing.

Cure speed depends on temperature, humidity, adhesive thickness and exposed surface area.

Technical Information

Brand: ANPIN

Model: AP-688W(E)

Series: AP-688

Product Type: RTV Silicone Adhesive / Fixing Silicone Rubber

Capacity: 2.6L / 2600ml

Color: White

Components: One-Part

Cure System: Condensation Moisture Cure

Cure Byproduct: Alcohol

Material Type: Silicone Rubber

Form: Paste

Primary Functions:
Bonding / Fixing / Insulation / Sealing

Continuous Operating Temperature:
Approx. -50°C to +200°C

Flame Retardancy:
UL94 V-0

Environmental Compliance:
RoHS / REACH

Key Properties:
Fast Surface Drying / Strong PCBA Adhesion / Electrical Insulation / Moisture Resistance / Flexible Cure / Flame Retardant

Typical Applications:
PCB / PCBA / Power Supply / Inverter / LED / Transformer / Capacitor / Inductor / Electronic Components

Important Technical Note

ANPIN’s current public product page provides the core performance and application information for AP-688 but does not publish a complete AP-688W(E) 2.6L technical table containing exact viscosity, density, Shore hardness, tensile strength or tack-free time.

These numerical values should therefore be confirmed from the latest AP-688W(E) TDS supplied with the actual batch before being presented as guaranteed specifications.

Why Choose ANPIN AP-688W RTV Silicone 2.6L

ANPIN AP-688W RTV Silicone 2.6L combines fast surface curing, strong electronic-component adhesion, electrical insulation and UL94 V-0 flame resistance in one ready-to-use silicone system.

Its broad -50°C to +200°C continuous temperature capability makes it suitable for demanding electronics and electrical equipment.

The large 2.6L industrial package is particularly useful for manufacturing plants using automatic or semi-automatic dispensing equipment and for production environments with high adhesive consumption.

For PCBA component fixing, power supplies, inverters, LED assemblies and high-voltage electrical components, AP-688W(E) provides a practical industrial RTV silicone bonding and sealing solution.