ThreeBond Europe

Homepage / Technical informations / Adhesive seminars / Elastic adhesive
Menu

#Elastic adhesive

What is elastic adhesive ?

Based on a special denatured polymer, it is a high-performance adhesive that exhibits tough rubber-like elasticity and suits a wide range of adhesion.

Hard and friable

For instance, glass is classified as this type.

Soft and weak

For instance, rubber is classified as this type.

Soft and viscous

Cured object of elastic adhesive corresponds to this type.

Hard and viscous

Cured object of structural adhesive corresponds to this type.

Types of elastic adhesives

ThreeBond’s elastic adhesives are roughly classified into the following three types according to differences in the main components.

  • Silicone (1220 series)
  • Modified silicone (1530 series)
  • Blend of modified silicone and epoxy (3950 series)

Adhesive strength for a wide range of substrates

— COMPARISON OF SILICONE AND MODIFIED SILICONE

The distinctive advantages of each are that silicone has excellent heat resistance and that modified silicone can be painted.

— COMPARISON OF ELASTIC ADHESIVES AND EPOXY-BASED ADHESIVES

Both exhibit excellent functions, but the fact that the cured product exhibits elasticity is a distinctive feature of elastic adhesives.

Curing method

— Moisture curability of elastic adhesive

Elastic adhesives cure by reacting with moisture in the air. The curability is shown in the graph below using ThreeBond 1530 as an example.

Standard curing conditions : 23°C, 50%RH × 7 days. Pay attention to deep-section curability.

— Hardens by reacting with moisture in the air

— Deep-section curability of elastic adhesive

— Moisture curing properties of elastic adhesives

The typical curing properties of ThreeBond’s elastic adhesives are shown below.

Applications

  • Fixing/bonding of automobile parts
  • Adhesion/sealing of electrical/electronic/medical equipment
  • Adhesion/sealing of various household items
  • Adhesion of various metals, plastics, and rubber

Elastic adhesives are adhesives that provide excellent adhesion to a wide range of materials.

FAQ

The resin does not cure even when irradiated with a UV irradiator. Why ?

Please consider about 120°C as a guide.

Does it adhere to polyethylene and polypropylene ?

Adhesion with the general grade is difficult. Please consider ThreeBond 1533F, which is a special grade.

Is there a way to bond quickly?

Please consider “double-sided application” as a method to enhance the initial adhesive strength.

＜Procedure for double-sided application＞
① Apply thinly and evenly on both surfaces to be adhered.
② Leave it for about 5 to 10 minutes.
③ As soon as adhesiveness such as that of adhesive tape appears, attach surfaces and press firmly to fix them together.

Precautions for use

  • Remove any water, oil, rust, and other stains on the surfaces thoroughly before use.
  • Fix bonded item until the product cures and do not move it.
  • Since it cures by reacting with the moisture in the air, the thickness of the adhesive, the temperature at the time of curing, and the relative humidity affect the curing time.
Scroll to Top