Available in square metre (m²) or full roll options. Fibreglass Chopped Strand Matting (CMS) is a versatile, easy-to-use and affordable material for polyester resins in boat building and flat roofing. Made from chopped strands of e-glass bound with an emulsion binder soluble in styrene, this is a general purpose emulsion bound chopped strand mat designed to cover a wide range of applications by normal hand lay-up techniques.
The 300g mat is soft to handle and conforms well to complicated moulds and will shape more easily than the heavier 450g and 600g alternatives. This high quality mat is suitable for use with unsaturated polyester resins. Resin penetration (wet through, or working time) is rapid with a fast strand wet out time.
Suitable uses: Often used in the boat building and fibreglass flat roofing industries and the manufacture of fibreglass moulds for part making. Used in conjunction with polyester resins, this material also has multiple repair applications.
Code: 11
Customer Reviews4.85 4.8/5 Based on 4 reviews
Bangladeshi boat being restoredReviewed by Paddler69 on 24 Sep 2025
Been restoring two bangadesi Nowkas over the past 5 years, the second one ,shown, is in very poor condition with wide gaps between planks and much rotten wood. The CSM has bridged the trouble spots and ensured good penetration of the epoxy. The cloth and tape will finish the job, next year!
Good qualityReviewed by Lee-maltas on 01 Sep 2025
The fiberglass came rolled up which made it easier to use, quick delivery aswell. Great product for my pond
ProductReviewed by Aanddpurcell on 24 May 2025
All as described
Good qualityReviewed by Info on 07 Feb 2025
Good quality but wish it came rolled on a tube,
Fibreglass Supplies use Royal Mail, APC Overnight and the National Hazardous Pallet Network for our Next Day Delivery Services.
Royal Mail
Orders of up to 2kg will usually be sent using a Royal Mail First Class Service for National Next Day Delivery.
APC Overnight
Orders over 2kg and up to 30kg will be sent using a Fully Tracked Next Day Service using APC Overnight. Some smaller Roofing Kits that weigh up to 30kg in Total would be sent on this service. This includes Resins, Gelcoats and Topcoats which are classed as Hazardous and are decanted into 5kg Tins or Pales to comply with the Transportation of Hazardous Goods Act.
Pallet Network
All our larger orders by weight would usually be sent using the National Pallet Network. Non Hazardous Items can be sent using either the Pallet Network or APC Overnight.
All Hazardous goods over 30kg (which includes Roofing Kits over 30kg in total weight) are usually sent using the National Pallet Network on a Fully Trackable Next Day Delivery Service.
Click & Collect
All orders are eligible for Click & Collect. Pick up your items conveniently from our Cattedown Store, available Monday to Friday between 7:30 am and 4:30 pm (excluding Bank Holidays).
NB - Please note that our Direct Control of the Delivery Element extends to making sure we pick pack and dispatch all orders on time. As we have no Direct Control over the performance of any individual courier we would not be responsible for refunds due to the late arrival of any order.
We always work hard with customers to overcome any issues that arise so please call us if you do have any concerns with regard to tight delivery deadlines so that we can provide great advice if needed.
Please read our Returns policy laid out below.
Under the Consumer Contracts Regulations 2014 you are entitled to return goods within 14 days of delivery for a refund of the cost of the goods. The delivery costs and any packaging are not included in the refund. The returned goods should be in the original containers and unopened. It is the customers responsibility to pay for the cost of returning goods to our Business Premises.
Some of our products are made to order and as such once ordered are non refundable and non returnable. These include coloured gelcoats, topcoats and resins.
These Consumer Regulations do not apply to business purchases (B2B). However we will always help in any way and look to find a suitable and mutually acceptable solution should any issues arise through the order process.
It is the customers responsibility to understand the suitability of the product before its use. Technical and Safety Data Sheets are available for all products where applicable. These can be found on most product description pages or if not are available on request. If you are unsure please do not hesitate to contact us for expert advice and product suitability and application.
To organise a return please contact us on the following.
