A company with a global reputation for high quality consistent products, world class technical support and excellent customer service.

Welcome to Castaldo

A brand with a global reputation for high quality consistent products, world class technical support and excellent customer service.

Castaldo products are manufactured in an ISO 45001:2018 and ISO 9001 Quality Management accredited company that continually invests in R&D and understands the requirement of close customer relationships combined with a world class technical support network.

In each of our five manufacturing locations we have locally based highly trained quality control and technical sales teams which offers a bespoke service to our customers supported by the UK headquarters.

February 2024

Castaldo Re-Introduces Natural Rubber Ready-Cut & Strips

Castaldo is pleased to announce that Natural Rubber Strips & Ready-Cut will once again be available from April 2024. As we have modernised our Natural Rubber manufacturing process we have now installed new equipment to manufacture Natural Rubber in Strip and Ready-Cut format.

Silicone Jewelry Molding Rubber

All Castaldo Silicone Jewelry Molding Rubbers make superior quality molds that are tough, strong, easy to pack, easy to cut and easy to use.

Natural Jewelry Molding Rubber

Castaldo White & Gold Label Natural Rubber makes very strong and flexible molds.
Conveniently packaged in either 50lb (22.7kg) or 5lb (2.27kg) rolls.

RTV Silicone Molding Rubber

RTV silicone is a liquid silicone compound that cures at room temperature to form a flexible rubber. The term RTV is means Room Temperature Vulcanising.

Injection Wax

Superior quality waxes for a full range of applications, producing patterns that are very flexible, resilient and durable with great memory while still being easy to work with and to inject.