Typical Features and Advantages of Multi-Purpose Waterproof Sealant HC-691B
This silicone sealant is black in color, liquid form, easy to extrude, easy to apply, and Self-leveling.
Good adhesion, capable of adhering to most industrial or daily materials such as metal, plastic, glass, ceramic, alloy, etc.
It has superior waterproof, moisture-proof, sealing, insulating, shockproof, heat-resistant, and aging-resistant properties.
This silicone sealant cures into a soft, flexible solid after curing, with good elongation rate, effectively reducing shock and impact protection.
It surface cures in 3 to 10 minutes, preliminary cures in 4 to 5 hours, and reaches optimal performance in 24 to 72 hours.
It is widely used in electronic device encapsulation protection, waterproof coating of PCBA components, bonding and sealing of housing frames, and sealing of ports or wire outlets.
This silicone sealant is a single-component room temperature curing type, can be directly extruded for application, no need for mixing, high temperature or UV-assisted curing.
It is convenient to store, can be stored indoors at room temperature without refrigeration. After opening and using, simply tighten the lid for storage until the next use.
Typical Uses of Waterproof Sealant HC-660B
Standard Packaging Specifications of Multi-Purpose Waterproof Sealant HC-691B
Usage Methods Specifications of Multi-Purpose Waterproof Sealant HC-691B
Clean the surface to be coated from dust, oil stains, moisture, and other dirt that could affect adhesion.
Before use, depending on the required amount, cut open the tip of the nozzle and squeeze out the silicone adhesive, then apply it to the surface to be coated.
The 100ml tube is typically squeezed by hand, but the silicone adhesive can also be squeezed into the dispensing machine reservoir for application through the dispensing machine.
For the 300ml and 2600ml sizes, a dispensing gun or dispensing machine is required for application.
The curing of this silicone adhesive depends on air contact, and the curing process occurs from the surface to the interior. Thus, the greater the contact area with air, the thinner the application thickness, and the faster the curing.
Low temperature and humidity can slow down the curing speed of the adhesive. In such cases, it the ambient temperature (not exceeding 60°C) and humidity to assist in speeding up the curing time.
Precautions for Use of Multi-Purpose Waterproof Sealant HC-691B
This silicone glue should be kept dry during storage and transportation, avoiding high temperatures and direct sunlight.
Hengchang Silicone recommends that you use it within 6 months from the date of manufacture. If it exceeds 6 months, it can still be used if it meets the usage requirements after testing.
This silicone glue is developed for general industrial use. If it is used for food contact, medical, or other special purposes, please ensure safety through testing before use.
The data on this page is based on our extensive testing and the results are reliable. However, due to the diversity of practical applications, factors beyond our control may arise. Therefore, we recommend that you conduct tests before practical application to ensure compliance with your intended use. Hengchang Silicone assumes no responsibility for any direct, indirect, or unexpected losses arising from problems encountered when using this silicone glue under specific conditions.
All data for this product are non-standard values. The recorded technical specifications, packaging specifications, etc., may change without notice due to changes in market demand, product improvements, or other reasons.
If you encounter any problems or require technical support during the use of this silicone glue, please contact us directly, and we will do our utmost to provide you with assistance.
