Rubber Compression Molding Process in 5 Steps
Rubber Compression Molding Process in 5 Steps
The 5-step rubber compression molding process: mold preparation, material preparation, pressing and vulcanization, cooling and demolding, and finishing.
What is rubber compression molding?
A rubber preform is placed in a heated mold, the mold is closed and a press applies pressure until the rubber fills the cavity and cures. It is the most common method for gaskets, seals and pads thanks to simple, affordable molds.
1. Mold preparation: clean, apply release agent and preheat.
2. Material preparation: weigh and cut preforms accurately.
3. Pressing and curing, with one or two "bumps" to release trapped air.
4. Demolding carefully to avoid distortion.
5. Finishing: deflash, clean, inspect and pack.
Reducing defects
Heavy flash: weigh preforms and add overflow grooves. Voids: bump the press and add vents. Short fills: increase preform weight or pressure. Sticking: polish the cavity. Many defects start with mold design, which is where Nhan Loc Phat can help.
Contact us for a quote
NHAN LOC PHAT MOLD CO., LTD.
- Address: 84/1/37 Tay Lan St., Binh Tan Ward, Ho Chi Minh City, Vietnam
- Workshop 2: 186 Lac Tan St., Nhut Tao Commune, Tay Ninh Province, Vietnam
- Hotline/Zalo: +84 911 114 512 – +84 902 517 458
- Email: kythuat@khuonmaulocphat.com
- Website: khuonmaulocphat.com
