ARALDITE® LY 8615 / ARADUR® 8615

• Low viscosity, easy to inject
• Long service life
• High temperature resistance (over 180°C)

Accurate (error control within+ 5%) and place in a clean container. Mix the resin and hardener thoroughly (stir for at least two minutes), scrape the sides and bottom of the container and stir several times with a stirring rod to ensure the mixture is homogeneous.

• Curing at 35-40°C for 24 hours, then at 180°C for 3 hours or
• Curing at 35-40°C for 24 hours and at 200°C for 6 hours

Unless otherwise specified, the recommended heating rate is 0.3°C/min.

Cure for 24 hours at 35°C, 2 hours at 120°C + 3 hours at 180°C. Unless otherwise specified, the test temperature shall be 25°C.

Step 1:

• Prepare the master model
• Clean the model with an appropriate amount of detergent.
• Treat the master model with a sealant and a release agent.

Step 2:

• Apply a gel coat (optional)
• If use of Gel coat is not needed, go directly to the step 3.

• Apply a layer of gel coat with a brush to a thickness of at least 0.6 mm.
• Proceed to step 3 while the gel coat is still wet.

Step 3:

• Import layer preparation
• Lay the fabric, then the peeling cloth, the guide cloth, the guide tube, and finally the vacuum bag. The guide tube should be placed in sequence, with a maximum spacing of 1 meter between each guide tube.

Step 4:

• Mixing Araldite®LY 8615 and Aradur®8615 and vacuum treatment Mix the resin and curing agent in a weight ratio of 100:50.
• During the mixing process, be sure to use a spatula to scrape the chemical off the edge of the container to ensure even mixing.
• The air in the mixed resin was evacuated within 20 minutes in a vacuum container at a residual pressure of 5-10 mb.

Step 5:

• Introducing process at room temperature
• Test before importing: Turn off the vacuum pump and measure the lost negative pressure. The value should be less than 5 within 10 minutes. The purpose of this test is to confirm whether the vacuum bag is completely airtight and leak-proof.

Step 6:

• Curing at 35-40°C under vacuum for 24 hours.

Step 7: Assemble the backing

• We recommend assembling the backing layer before demoulding. The pressure from demoulding can cause deformation of the finished mold.
• The backing layer can be made of steel or carbon fiber reinforced material.

Step 8: Demolding

• A plastic wedge can be used during demoulding to avoid damaging the finished mold.

Step 9: Post-curing

• Huntsman Advanced Materials recommends a maximum temperature of 180°C with a ramp rate of 0.3°C/min.

General curing properties

Glass fiber reinforced composite materials

Cure for 24 hours at 35°C, 2 hours at 120°C + 3 hours at 180°C. Unless otherwise specified, the test temperature shall be 25°C.
Composite material information:

• Fabric Type: Glass fabric, 8 satin, 300 g/m²
• Weaving method: 0°, 8 layers
• Laminating resin content: 32.3%

* Hot/humidity test conditions refer to 48 hours in boiling water (98°C to 102°C). Sample weight should be measured before and after the test and the weight gain determined.

Carbon fiber reinforced composites
Cure at 35-40°C for 24 hours and at 180°C for 3 hours.
Composite Materials

• Fabric Type: Carbon fiber fabric, 5 satin, 375g/m²
• Weaving method: 0°, 6 layers
• Laminating resin content: 42% (volume)

ARALDITE®LY 8615 should be stored at 2-8°C, while ARADUR® 8615 should be stored at 18-40°C and should be stored in a dry place in their originally sealed containers.
Applicable period:

• When mixing, the material temperature should be above 18°C. After use, please seal the container again.
• Under these conditions, the storage period corresponds to the expiration date indicated on the packaging label. After this date, the product must be tested to determine whether it is still effective.