For a continually expanding variety of uses, our bellows come in all shapes and sizes. Without parting lines or flash marks, vinyl plastisol bellows have smooth, soft contours and are more resistant to weathering, aging, cracking, and deterioration than rubber bellows.

Because dip mold tooling costs are low, you can evaluate your bellows' performance before proceeding to full production. We'll assist you in making changes quickly and inexpensively. Simple changes in the wall gauge, material formulation or color can produce different types of bellows from the same tooling.

Tips for Bellows

Sharp, deep convolutions should be avoided when designing a bellows for dip molding. Bellows with a more uniform wall thickness are produced when convolutions are shallow, rounded, and properly spaced.

For maximum collapsibility of a bellows, the "Christmas tree" design is used. This allows the upper convolutions to be compressed inside the wider circumferences of the lower convolutions instead of on top of them.

Special Advantages:

• Infinite possibilities in shapes, styles and functions.
• Detailed hollow configurations easily molded. More comfort, less fatigue.
• Superior durability. Flame retardant. Resistant to weathering, aging, cracking and deterioration. Withstands temperatures from -20° to 160°F. Strongly resistant to ozone attack.
• Clean exterior surfaces. No parting lines, flash, or mold and gate marks.
• Variety of wall thickness possible without expensive retooling.