Polymer Materials Expertise,
Dedicated to Your Success
THOR-SOFT was founded by a team with deep polymer materials and process engineering backgrounds. With over 9 years of foreign trade experience, we bridge the gap between complex silicone & rubber manufacturing and international B2B buyers.
Our engineering team reviews every drawing before quoting — not after. We provide DFM (Design for Manufacturability) feedback upfront, helping you avoid costly mold revisions and production delays.
ISO 13485 Compliant
FDA / LFGB / RoHS
Why Choose an Engineering-Led Supplier?
It Started with a Simple Frustration
Our founder spent years in a polymer materials laboratory, formulating silicone compounds and studying elastomer behavior at the molecular level. Then came the transition to foreign trade — 9 years of working with international buyers who needed custom rubber and silicone parts.
The frustration was always the same: buyers sent drawings to trading companies, trading companies forwarded them to factories, and nobody in between actually understood the engineering. Wall thickness too thin? Draft angle missing? Wrong material for the application? These issues surfaced only after tooling was cut — when revisions were expensive.
THOR-SOFT was founded to fix this. We put engineering first: every drawing is reviewed by a process engineer before quoting. Every material recommendation is backed by lab data, not guesswork.
“We don’t sell parts. We sell engineering confidence. When a buyer receives our quote, they should know that someone has already thought about the problems they haven’t encountered yet.”
— Founder, THOR-SOFT
Milestones Along the Way
The Foundation
Founded with a small team of polymer engineers. First compression molding press installed. First client: a German automotive seal buyer who needed FDA-grade EPDM gaskets.
Expansion into LSR
Added LSR injection molding capability. First medical device client — silicone valve seals for a US medical manufacturer. ISO 9001 certification achieved.
Rubber Compression Line
Expanded into rubber compression molding (NBR, FKM, CR, EPDM). Began serving industrial equipment and oil & gas sectors. Team grew to 25 people.
DFM Service Launch
Launched our DFM (Design for Manufacturability) feedback service — free for all quoting clients. Published our first DFM Guide, now referenced by 200+ design teams worldwide.
Extrusion & Overmolding
Added silicone extrusion and overmolding capabilities. Now offering all 5 major silicone/rubber processes under one roof. Client base reaches 15 countries.
ISO 13485 Compliance
Achieved ISO 13485 compliance for medical device manufacturing. Installed Class 100 cleanroom for LSR medical parts. FDA registration completed.
30+ Countries Served
THOR-SOFT parts now ship to 30+ countries across North America, Europe, and Asia-Pacific. Over 500 active tooling projects. 98% on-time delivery rate.
Digital Engineering Platform
Launched online DFM Guide and instant quoting platform. Buyers can now submit drawings and receive engineering feedback within 24 hours — no back-and-forth, no language barriers.
THOR-SOFT by the Numbers
What Drives Us Every Day
Engineering Before Commerce
We review the drawing first. If a design has a manufacturability problem, we tell you before quoting — even if it means losing the order. Every batch is dimensionally inspected, with material certificates and inspection reports shipped with every order.
Data Over Assumptions
Material selection, hardness recommendation, tolerance callouts — every suggestion is backed by lab testing and 9+ years of production data. No “we think it should work.” 24-hour quote response, rapid tooling in 7-10 days.
Global Standards, Local Execution
We manufacture in China, but our quality systems meet FDA, LFGB, REACH, and RoHS requirements. Our team acts as an extension of your design team — fluent technical English, your timezone, proactive solutions.
Five Processes, One Partner
From prototype to production, we cover every silicone & rubber manufacturing process you need.
Compression Molding (HTV Silicone & Rubber)
1 – 100,000 pcs. Low tooling cost, fast turnaround. Shore A 20–80. FDA & medical grades available.
LSR Injection Molding
Liquid silicone rubber, high precision. Class 100 cleanroom available. Medical & food-grade compliance.
Rubber Compression Molding
EPDM, NBR, FKM, CR. Oil-resistant, high-temperature, FDA-grade options for automotive & industrial.
Silicone Extrusion
Continuous seals, gaskets, tubing. Custom profiles, sponge & solid. Close tolerance control.
Overmolding & Insert Molding
Silicone over plastic/metal. Waterproof seals, ergonomic grips, tactile buttons. Multi-material assembly.
Ready to Start Your Project?
Upload your drawing and get a detailed quote within 24 business hours. Our engineering team reviews every design before quoting.