Glass fibre moulding title

Glass fibre moulds

At Strandek®, we’ve been creating high-quality, hand-laid glass fibre moulds for over 40 years. Our designs have been used to create everything from architectural features to industrial structures.

Made from glass fibre, they require very little maintenance, possess, excellent fatigue resistance and have a minimum 30-year lifetime in most instances.

We pride ourselves on exceptional customer service and a strong technical team on hand to advise you accordingly. With a range of CAD drawing and high-precision cutting services available, we’re confident we can meet your needs.

Call us today on 01633 250652 or email us to find out how we can help you.

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Glass fibre moulding

Also known as GRP (Glass reinforced plastic/polyester), glass fibre is a lightweight composite with a high tensile strength. A mixture of glass mat and polymer-based resin, it’s initially malleable yet hardens upon curing, making it perfect for a variety of applications. 

What is hand laid glass fibre moulding?

Cheaper than machine manufactured moulds, hand-laid moulds are glass fibre structures created by technicians by hand-based tools rather than machinery -- which is preferable for more significant mass-produced quantities and more specialist requirements (e.g. medical technology, spacecraft and racing cars).

How are Strandek ® GRP Glass Fibre moulds created?

A prefabricated mould base which is (machine manufactured) and usually CAD designed provides the backbone of the structure. The ‘wet’ glass fibre structure itself is initially malleable with the aim being to force it to the mould base. Upon curing, the solidified glass fibre mould is removed from the base structure and cut to specification, with the outer-facing surface being tailored for application (polishing, colouring, etc).

Our process

Over the past 40 years, we’ve perfected a standardised process to enable you produce bespoke, high-quality and consistent structures. Our process is split into various stages:

  • Design consultancy: depending on your application, our technical team can help advise you on the feasibility and construction of your design
  • CAD drawing: using computer-aided design, we’re able to help you visualise and perfect your structure before construction
  • Mould creation: we can design and oversee the fabrication of features to provide accurate structural formation of your mould
  • Prototyping: for larger projects, proof-of-concept or small-scale designs are recommended to evaluate and ultimately de-risk your project.
  • Manufacture: our glass fibre moulds are produced in a controlled environment by experienced technicians with decades of experience
  • Full traceability: ingredients, designs, suppliers, protocols, specifications and a full report are available upon completion.
  • Cost and timelines: experience has allowed us to make accurate projections in relation to your timescales and budget
  • Delivery: operating nationwide, we can facilitate the safe, secure transportation of mouldings to your site nationwide
  • Installation: often the final stage of the process, we can advise on and perform the full integration and insertion of manufactured moulds into your facility
  • Maintenance and repair: occasionally the weather or excessive impact can damage even the strongest structures. Strandek offer a full maintenance and repair service designed to repair new and existing structures

Key features of Strandek® GRP Moulding

  • Strong and lightweight: GRP moulds offers high tensile strength yet is lightweight, providing strength to weight to many metals at a fraction of the cost.
  • Stain-resistant surfaces free surface: low microbial buildup, UV-resistant surface, that retains a highly polished face throughout its lifetime.
  • 40 years of experience from a dedicated, professional team


  • Fire retardant resin: BS476 parts 6 and 7
  • Colour: choose from any BS5252 or RAL colour.
  • Finishing: choose from a variety of finishes, from a smooth polished surface to a rough, textured design
  • UV-resistant resin: structures exposed to direct sunlight are susceptible to UV-based degradation.
  • Drinking water compatible: WRAS- and Regulation 31-approved resin (optional)
  • High-quality: CE-marked materials and approved suppliers

If you’d like to speak to our technical team today, contact us on 01633 250652 or send us an email.

Contact us




Made in Great Britain icon

Made in Great Britain

40+ Years Experience icon

40+ Years Experience

Why Choose Strandek®?

For over 40 years we've provided high-quality fibre glass and resin coatings. Working with industry, government, commercial ventures and on residential properties, our Strandek® GRP System has been used on everything from chemical bunds to flat roofs.


Our team have extensive experience and we pride ourselves on reliable workmanship and competitive pricing.

  • Unrivalled service
  • Exceptional quality 
  • Unmatched speed

Health & Safety

A strong health & safety ethic is the core of our business. We strive to maintain this through:

  • Best practices
  • Transparency & accountability
  • Rigorous training

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