Custom Service Laboratories of N.J., Inc. delivers expert consultation, design, and workmanship -- prototypes to production runs. 

From concept to finished product, Custom Service Laboratories of N.J., Inc. delivers expert consultation, design, and workmanship -- prototypes to production runs. Currently we manufacture inflatable bladders, inflatable and mechanical pipe plugs, sleeves and tank liners. In addition, we manufacture custom designs in a variety of rubber and plastic compounds and in many configurations.

CSL solves problems and has provided the global marketplace with medical and industrial products. We combine craftsmanship, gleaned from years of experience, with today's technology to solve problems in a wide variety of applications.

Sample-Making

A sample is a prototype of your idea. Sample-makers usually make the product by hand (hand-cutting, hand-assembling, etc.) before you get your tooling finalized. You want your sample to be perfect if you plan to do mass production of your product.

(Usually sample-makers charge more per product, but this depends on the factory’s policy.)

Production

"Production run" means making a lot of one product at once. The factories listed under "production" can produce small and/or large quantities. The minimum order for a production run can vary from factory to factory (some have no minimum, some require a dozen, and some require up to 1,000 to be made at once)