Properties & Uses Of Glass Reinforced Plastic (GRP) Products

Glass Reinforced Plastic (GRP), otherwise known as Fibre Reinforced Polymer (FRP), offers developers many advantages over metallic alternatives, especially when compared with steel equivalents. Benefits, such as high tensile strength, low weight (approximately 1/4 of the weight of steel), corrosion resistant, non-conductive properties, radar transparent and electromagnetically neutral, combine to deliver a highly cost effective, durable and sustainable product.

GRP / Glass Reinforced Plastic Properties

High Corrosion Resistance

Offering exceptional corrosion resistance, GRP is highly tolerant of the most aggressive of environments. Its total resistance against chloride ion attacks demonstrates its durable nature and ability to withstand harsh conditions. Unlike traditional alternatives, such as steel, aluminium, and timber, GRP delivers a long-term practical solution that overcomes the inherent corrosion challenges facing industry today.

High Strength

GRP’s superior tensile strength is equal to or greater than equivalent steel profiles. Despite its lightweight properties, GRP offers impressive strength-to-weight load-bearing performance. The high glass-to-resin ratios used in our technically advanced formulation ensure our GRP products outperform and outlast traditional materials.


75% lighter than steel equivalents, GRP significantly reduces transport costs and eliminates the need for heavy lifting equipment. As it can be easily cut and manoeuvred onsite, the risk of manual handling injuries is mitigated.

Non-conductive, inert and non-sparking

The non-conductive properties of GRP make it ideally suited for use on electrically hazardous sites. A highly effective electromagnetic and thermal insulator, it is electronically transparent and not affected by electromagnetic fields or radio wave frequencies. The non-sparking qualities of GRP make it suitable for locations where combustible gases may be present.

High Impact Resistance

GRP resists sudden and severe point loading and avoids permanent distortion. If the GRP is deformed due to impact, it will return to its original shape without contractors having to incur costly repairs or replacements.

Easy to Fabricate

GRP can be easily fabricated and cut onsite to accommodate precise specifications and complex layouts. Using standard hand tools, such as circular saws, contractors can easily cut the product without compromising any of its advantageous properties.

Low Maintenance

GRP is an incredibly resilient and durable material that delivers outstanding cost benefits. GRP, in all its forms, offers a low-maintenance solution with little need for renovation or refurbishment during its fifty-year lifespan.

Long Life Cycle

When subjected to normal operating conditions and environment, the life expectancy of the profiles will be 20 years +, subject to the normal discoloration that will be expected.

Radar Transparent

GRP will not interfere with radar systems.

GRP Uses

GRP Products

  • Commercial – There is a multitude of GRP uses within the commercial sector. GRP fencing and anti-slip products are regularly installed within the commercial sector at stores, supermarkets, and much more. Products are predominantly used in this sector for safety and protection.
  • Residential – There are also many GRP uses for the residential market with GRP mesh and GRP palisade fencing being two of the main uses. These types of fencing provide immense security, they are visually appealing and also highly flexible and adaptable.
  • Industrial – This sector covers a diverse range of GRP uses. Our products used within the industrial sector include GRP gatehouses, doors, enclosures, cabinets, kiosks, and explosion relief GRP housings.

Engineered Composites supply a wide range of high-quality GRP products for commercial, residential, and industrial customers. Our range of products includes;-