Comprehensive technical expertise in polymer chemistry, from concept development to commercial production
Advanced formulation of polyurethane systems tailored to specific performance requirements.
Polyurethane chemistry is the formulation of reactive polymer systems, built from isocyanates and polyols, whose hardness, cure speed and flexibility can be tuned to an application. Rosehill Chemicals formulates MDI-based polyurethane systems, including low-free monomer grades, at its West Yorkshire facility, covering the full Shore 20A to 80D hardness range with custom cure profiles and pot life. Batches run from 1kg development samples to 5 tonne production volumes.
Structural and semi-structural adhesives for demanding bonding applications.
An industrial adhesive system bonds two substrates either structurally, where the joint carries load, or semi-structurally, where sealing and flexibility matter as much as strength. Rosehill Chemicals develops one and two-component adhesives and flexible sealants with primer-less adhesion across mixed substrates, formulated for environmental resistance with rapid or controlled cure to suit the production line.
Combining polymer technologies to achieve performance characteristics not possible with single-system approaches.
A hybrid polymer system combines two chemistries, such as silane-modified polymers or polyurethane-epoxy blends, so the finished material gains properties neither offers alone, for example weathering resistance with low VOC content. Rosehill Chemicals formulates hybrid and isocyanate-free systems with mechanical properties specified by the customer.
Tailored pre-polymer intermediates designed as building blocks for your specific end-product formulations.
A pre-polymer is a partially reacted polyurethane intermediate that manufacturers use as a building block in their own end products. Rosehill Chemicals manufactures bespoke MDI and TDI-based pre-polymers with controlled NCO content, targeted viscosity profiles and extended shelf life, in batch or continuous production on a patent-protected continuous reactor, with initial samples typically delivered within 2 to 4 weeks of briefing.
Specialist compounds for infrastructure repair, protection and lifecycle extension.
Repair and maintenance compounds extend the life of existing infrastructure rather than replacing it: rapid-cure mortars and concrete repair compounds restore structure, while protective coatings, anti-corrosion treatments, joint sealants and cold-applied membranes protect what remains. Rosehill Chemicals formulates these for all-weather application, with service temperatures from -40°C to +120°C depending on the system.
Environmentally responsible formulations that meet performance requirements while minimising ecological impact.
Sustainable formulation means meeting a performance specification with lower-impact ingredients: bio-based polyols, recycled content, and solvent-free, low-VOC or zero-VOC chemistry. All Rosehill Chemicals formulations are REACH-compliant and manufactured in the UK, and the company is a member of the chemical industry's Responsible Care programme.
| Capability | Specification | Detail |
|---|---|---|
| Experience | 35+ years | Continuous polymer development |
| Reactor Technology | Patent Protected | Continuous reactor for high output manufacturing |
| Development Time | 2–4 weeks | From concept to initial samples |
| Hardness Range | 20A–80D | Shore A to Shore D scale |
| Service Temperature | -40°C to +120°C | Application dependent |
| Confidentiality | 100% | Strict NDAs for all projects |
In summary: Rosehill Chemicals has formulated polymers continuously for over 35 years. Bespoke development typically takes 2 to 4 weeks from concept to initial samples, manufactured on a patent-protected continuous reactor at the company's West Yorkshire facility. Formulations span Shore hardness 20A to 80D and service temperatures from -40°C to +120°C depending on the application, and every customer project is covered by a non-disclosure agreement.
All formulations are developed and manufactured to the highest quality standards, ensuring consistency and reliability in every batch.
Quality management system certification ensuring consistent product quality
Full regulatory compliance for European chemical legislation
Comprehensive analytical capabilities for quality control and development
Strict NDAs and IP protection for all customer projects
All products manufactured at our West Yorkshire facility
Member of the global chemical industry's commitment to sustainable development
A pre-polymer is a partially reacted polyurethane intermediate that manufacturers use as a building block in their own end products. Rosehill Chemicals manufactures bespoke MDI and TDI-based pre-polymers in the UK with controlled NCO content, targeted viscosity and extended shelf life, in batches from 1kg to 5 tonnes.
Bespoke formulation starts from your performance specification, including hardness, cure speed, service temperature and substrate, rather than from a catalogue product. Rosehill Chemicals develops a chemistry to meet it, typically delivering initial samples within 2 to 4 weeks, then scales the formulation to production on a patent-protected continuous reactor.
Development batches start at 1kg and production batches run up to 5 tonnes, with batch and continuous manufacturing available. All production happens at the company's facility in Sowerby Bridge, West Yorkshire.
Formulations cover Shore hardness from 20A (soft and flexible) to 80D (rigid), and service temperatures from -40°C to +120°C depending on the chemistry and application.
Yes. All formulations comply with REACH, the European chemical regulation, and the company holds ISO 9001 quality management certification and membership of the chemical industry's Responsible Care programme.
Yes. Every customer project is covered by a strict non-disclosure agreement, and customer-funded formulations remain the customer's intellectual property.
Our technical team is ready to help you develop the perfect solution for your specific needs.
Start Your Project