Milled Glass
A fine powdered, single strand, glass fiber that is used as a reinforcement to increase mechanical strengths (impact, modulus, compressive, and flexural) of resins. Use where increased strength is required for bonding, filleting, and fastening with resin. Use to thicken resin.
Milled glass improves dimensional stability, increases heat distortion temperature. (HDT), and reduces shrinkage.
Milled Glass effects: (adding 20-25% by weight, added to the B side)
- HDT increases 30˚F
- Elongation decreases 5% - 10%
- Tensile Strength decreases 3% - 5%
- Modulus of elasticity increases 20%
If you increase the length of the fiber, all of the values will increase.
If you increase the number of fibers, such as woven cloth, the values will multiply 2 or 3 times.
Typical Properties
| Mix Ratio by weight (starting point) | 25 parts by weight to the 100 parts A/B mixture |
| Mix Ratio Range | 20-28 parts by weight to the A/B mixture |
| Specific Gravity | N/A |
| Type | Short fiberglass powder. 1/32 fiberglass |
| Machinability | Poor |
| Color | Gray / White |
NOTE:
Milled glass should be dried before use at 200-250˚F in an oven for at least 8 hours before use. Unused material should be stored in a sealed plastic bag for future use.
PRECAUTIONS:
Skin or eye contact with any glass filler should be avoided. The use of gloves, eye protection, and face masks are strongly recommended.
All polymers, as a general practice, should be used in well-ventilated areas. Spot ventilation is most effective. Contaminated clothing should be removed immediately and the skin washed with soap and water or waterless skin cleaner. Should accidental eye contact occur, wash thoroughly with water and
consult a physician.