Plastisol is one of the most versatile materials used in protective manufacturing, especially when creating custom plastic caps and molded covers. Engineers across automotive, marine, electronics, industrial sectors and many other industries rely on plastisol because it offers a unique balance of durability, flexibility, and chemical resistance.
What Plastisol Is Made Of
Plastisol is created by suspending PVC particles in a liquid plasticizer. When heated to about 177°C, the PVC fuses into a strong, rubber-like material. After cooling to around 60°C, it becomes permanently flexible.
This curing process creates a material that is:
- Highly durable
- Smooth and uniform
- Flexible under pressure
- Resistant to moisture, oils, and chemicals
- Safe for indoor and outdoor use
Why It Performs Better Than Alternatives
Many materials crack, warp, or degrade over time. Plastisol maintains its integrity because:
- It resists UV exposure
- It absorbs impact instead of fracturing
- It forms tight seals around irregular shapes
- It can be manufactured in almost any color or thickness
- It stays flexible in cold temperatures
Because it bonds so well to dip-molded forms, plastisol creates a seamless protective layer that’s ideal for caps, plugs, grips, and sleeves.
Key Engineering Applications
Plastisol has many applications, it is commonly used in:
- Electrical insulation
- Tool handle coatings
- Surface protection
- Waterproofing
- Custom fittings
- Outdoor equipment
- Safety grips
Its adaptability makes it an engineering material with almost unlimited use cases.
Our Made-to-Order Advantage
Carlisle Plastics Company does not use off-the-shelf components. Every plastisol part is manufactured per project specifications, including thickness, diameter, flexibility, shape, and finish. This helps ensure engineers receive exactly what their design requires.
Learn more about the history of plastisol here.
Discover the applications and uses of plastisol in this article.