FRP Lamination for Steel Structures

FRP lamination for mild steel structures such as handrails, I-beams, C-channels and hollow sections. An ISO or vinyl ester lining protects steel in chemical, fertilizer and agrochemical plants and on coastal and offshore sites.

SKU :

LAM-STEEL

FRP Lamination for Steel Structures

FRP lamination for steel structures is a fiberglass lining of resin and glass mat laid over mild steel handrails, I-beams, C-channels and hollow sections to protect them from chemicals and corrosion. It is used in chemical, fertilizer and agrochemical plants, and as a protective coating on coastal and offshore metal structures exposed to sea air and salt water. Mui Fatt laminates steel on site, or you can send the parts to our factory in Port Klang.

Ringkasan: Lapisan fiberglass (FRP) untuk struktur keluli lembut seperti pemegang tangan (handrail), I-beam, C-channel dan hollow section. Ia melindungi keluli daripada bahan kimia dan karat di kilang kimia, kilang baja dan agrokimia, serta struktur logam di kawasan pantai dan luar pesisir. Kerja dibuat di tapak atau di kilang kami di Pelabuhan Klang.

Specifications

Steel items	Mild steel handrails, I-beams, C-channels, square and round hollow sections
Lining build-up	1 coat of resin primer; plies of 450 g/m² E-glass chopped strand mat (CSM); 1 ply of surface veil; 1 coat of waxed resin topcoat
Number of plies	Minimum 1 ply recommended; usually up to 3 plies
Lining thickness	About 1 mm per ply, so usually about 1 mm to 3 mm
Resin	Isophthalic polyester (ISO) or vinyl ester (VE), chosen for the chemical or the sea environment
Colour	Natural resin colour (clear) or grey
Typical properties	Tensile strength 9,000 psi; tensile modulus 1,000,000 psi; Barcol hardness above 30; adhesion above 580 psi on grit-blasted steel
Inspection	Visual inspection for blisters, cracks, trapped air and irregularities; ply count during lamination
Work site	On site, or send the parts to our factory in Port Klang

How we laminate steel

Site visit: our technical staff check the steel, and access for workers, before work starts.
Surface preparation: the steel is ground to remove rust, and dust is removed.
Priming: one coat of resin primer by brush or roller, left about 1 to 2 hours until tacky.
Lamination: each ply of glass mat is laid into wet resin, wetted through and rolled to remove trapped air, then the surface veil. Each stage is touch dry in about 3 to 4 hours.
Topcoat: a resin-rich waxed topcoat, left to cure about 12 hours.
Inspection: visual inspection for blisters, cracks and trapped air, with the plies counted as they are laid.

We work at 10°C to 50°C, relative humidity below 90%, with the surface at least 3 K above dew point, and not in rain.

No welding or metal cutting may take place near or above the lining area.

Applications

Chemical, fertilizer and agrochemical plants: handrails, I-beams and steel structures
Coastal and offshore metal structures: protective coating against sea air and salt water
Steel parts that can be removed, laminated at our factory and installed again

Other FRP lamination pages

Questions About Steel Structure Lamination

Can you laminate steel parts at your factory?

Yes. Smaller steel parts can be sent to our factory in Port Klang. Larger structures are laminated on site.

Is FRP lamination better than paint on steel?

For chemical splash or immersion, yes, because it is glass reinforced and millimetres thick. For dry, mild conditions a paint coat may be enough and costs less.