Reinforcement and Core Materials

Composites are made up of individual materials referred to as constituent materials. There are two categories of constituent materials: matrix (polyester, vinyl ester or epoxy resin) and reinforcement. The matrix material surrounds and supports the reinforcement materials by maintaining their relative positions. The reinforcements impart their special high mechanical strength values and improve values of composite structure. 

Döküm Tipi

Chopped Strand Mat

E-glass CSM is the most widely used 

polyester and vinyl ester resin 

reinforcement for HLU. Strands of glass 

fiber are held together by an emulsion 

or powder binder to form a mat. 

Polyester resin dissolves the binder 

allowing the fibers to follow the mold 

contours. A typical FRP structure would 

contain approx. 2,5 kg resin to 1 kg 

CSM. 

Emulsion Bound: E-glass E-MAT1 

300,450,600gr/m2 

Powder Bond: E-glass MAT-8 300,450,600gr/m2 

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Fiber Woven Roving

E-glass roving is a bi-directional fabric 

made by interweaving direct rovings. It 

is for laminating large fiberglass parts 

where a cost effective, high impact, 

high strength reinforcement is required. 

It is often used for boats and tanks in 

conjunction with CSM as a simple 

means of adding bulk to increase 

stiffness. A typical laminate use 

approx. 1 kg resin to 1 kg FWR. 

FWR: E-glass 300,500,800gr/m2 

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Spray-up Roving

E-glass assembled rovings are compa tible with polyester and vinyl ester. 

It’s used for spray-up. 

KCR2/KCR3 are recommended for spray-up productions. 

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Direct Roving Pultrusion/Filament Winding

E-glass assembled rovings are compatible with polyester and vinyl ester. It’s used for filament winding and pultrusion processes or weaving. KCR5 for pipe productions, PWR6 for filament winding and pultrusion productions. 

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RTM Mat Fiberglass Sandwich Stitched Mat

Reinforcement complex consists of a resin liner core sandwiched between chopped glass fiber and mechanically stitched together. It's ideal reinforcement for molding GRP parts using closed mold techniques including RTM, RTM light, low-pressure compression, infusion with built-in resin flow zones. Check our website for more information. 

RTM Mat types include: 

200M / 180PP / 200M 

450M / 250PP / 450M 

600M / 250PP / 600M 

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Chopped Strands

Chopped fiberglass strands are glass fiber strands that can be mixed to resin or concrete to make a dough like mixture which is extremely strong. This coarse mixture is used to strengthen castings and reinforce fillers in difficult to laminate areas such as sharp internal corners. 

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Surface Tissue

This material is a thin fiberglass fabric which is used between the gelcoat and the reinforcing materials. Surface mat is similarly manufactured and has a similar appearance to the chopped strand mat but it is much finer. This surfacing veil prevents the weave patterns from bleeding through the gelcoat. Also, it is used to provide a resin-rich layer in liquid or chemical holding tanks or reinforcement for layers of gelcoat. 

Weights: 14 gr/m2 and 43 gr/m2. 

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Multiaxials

High performance multiaxial 

reinforcements are engineered fabrics 

consisting of one or more layers of 

unidirectional fibers. These layers are 

held in place by a non-structural 

stitching thread which is generally a 

polyester yarn. 

Multiaxial types include: 

Unidirectional, Biaxial, Triaxial, 

Quadraxial, Combi Mat, Stitched Mat 

Material: Available in E-glass, 

Aramid, Carbon, and Hybrid forms. 

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Carbon and Aramid Reinforcements

A high performance reinforcement allowing for better strength to weight ratio than glass fiber. Woven Aramid Fabric exhibits high abrasion resistance. It can reduce weight up to 40% compared to glass. Polyester resins can be used but, for better performance, vinyl ester or epoxy resin should be used. 

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Lantor Coremat

This is a non-woven core material and print through barrier for hand lay-up and spray-up processes. It is used to reduce weight, save resin glass, increase stiffness, increase thickness build-up and improve surface finish. 

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Lantor Soric

Soric is a polyester non-woven material with a compression resistant, hexagonal (XF, SF, LRC) or random dot-printed (TF) cell structure. These pressure-resistant cells, which are separated by channels, contain synthetic micro-spheres. Cells within the structure do not absorb resin and controls total volume of resin used. Since these cells are pressure resistant, they create thickness in the laminate even when pressure is applied by a vacuum bag. 

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Modification Description

  • FR   Filled flame retardant
  • D*   Filled (*with filler content)
  • T Thixotropic (no sagging)
  • A Cobalt preaccelerated
  • ABP Amine preaccelerated
  • UV UV Curing
  • L   UV light stabilized
  •   I Lower viscosity
  •   V Higher viscosity
  •   LSE   LSE (low styrene emission)
  •   H* Gel time customized (at room temperature) * minutes
  • H40 Optimized for summer season. Gel time (at room temperature) 40 minutes.
  • H20 Optimized for winter season. Gel time (at room temperature) 20 minutes.
  •   COLOR   White or custom color options

Gelcoat Customizations
Polijel gelcoat table descriptions and modifications.

  • Spray Application (airless preferred)
  • Brush or Roller Application
  • Color Option: White colored
  • Color Option: Light colored (pastel)
  • Color Option: PRO colored

Production Quantity Depending on Process (parts/year)
Regardless of product dimension and complexity..

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