Engineered Sealing Solutions for Construction
At ST Plastics, we develop and manufacture precision-extruded rubber profiles and sealing solutions for demanding construction applications. With decades of extrusion expertise, we combine advanced elastomer compounds, modern tooling and precise manufacturing processes to produce profiles that deliver reliable sealing performance, long service life and consistent quality.
Whether used in roofing systems, façade construction, windows, doors or other structural applications, our profiles are engineered to withstand moisture, UV exposure, temperature fluctuations and continuous mechanical stress while maintaining excellent flexibility and sealing performance.
More profiles are in our catalogue.
Engineered for Modern Construction
Our precision-extruded rubber profiles are designed for demanding construction applications where reliable sealing, weather resistance and long service life are essential.
Roof Sealing Systems
High-performance sealing profiles designed to protect roofing systems against rain, snow, UV radiation and long-term weather exposure.
Weather Resistant
Windows & Doors
Precision sealing profiles providing excellent airtightness, thermal insulation and long-lasting flexibility for modern window and door systems.
Energy Efficient
Facade & Structural Systems
Custom-designed rubber profiles for curtain walls, expansion joints and demanding architectural applications requiring reliable sealing.
Custom Extrusions
Custom Engineered Profiles
We manufacture bespoke rubber profiles based on customer drawings, CAD files or physical samples for unique construction requirements.
Made to SpecificationWhy ST Plastics?
Instead of simply supplying rubber profiles, we support our customers throughout the entire development process—from material selection and profile design to tooling, prototyping and serial production.
In-house Extrusion Expertise
Our engineers optimise every profile for manufacturability, durability and consistent dimensional accuracy.
Custom Material Development
A wide range of EPDM, TPE, PVC and other elastomer compounds can be selected or developed to match specific environmental and mechanical requirements.
Precision Manufacturing
Modern extrusion technology ensures repeatable quality, stable tolerances and excellent surface finish throughout every production run.
Built for Long-Term Performance
Our sealing profiles are designed to resist UV radiation, ozone, moisture, temperature changes and demanding outdoor conditions for many years.
From Concept to Serial Production
Whether you have a sketch, CAD drawing or an existing profile, our engineering team guides your project from the first consultation through development, tooling and production.
Contact Us
Share your drawing, sample or project requirements.
Engineering Review
We analyse the profile, material and application requirements.
Material Selection
Our engineers recommend the most suitable elastomer and profile design.
Tooling & Samples
Prototype extrusion and approval before serial production.
Serial Production
Consistent, high-quality extrusion with reliable delivery.
Ready to Start Your Project?
Our engineering team is ready to help you develop the right extrusion solution.
contact us
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