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  • Fiberglass reinforced plastic grating (also known as FRP gratingglass reinforced plastic grating or fiberglass grating) is a composite material manufactured by combining a matrix of resin and fiberglass. Fiberglass grating does not corrode like steel grating and is therefore used in corrosive environments to reduce maintenance costs. It is used in a variety of applications including walkways and overhead platforms. FRP grating is a structural product that can be weight-bearing between spans.
    March 23
  • Anti-slip steel grating is a type of bar  grating to prevent slippage. Steel bar grating is manufactured in a variety of methods. Welded bar grating consists of load bars electrically fuse welded to cross bars. Pressure-locked bar grating, or swaged grating, is where steel rods are forced through and locked in load bars. Riveted bar grating is where the load bars are riveted to the cross bars. There are wide varieties of trade names for each type manufactured.

    Perforated sheet metal types:

    • Diamond-shaped serrated perforated sheet metal. Examples of trade names are Grip Strut, Diamond Grip, Ry, Diamond, Grip Span, Deck Span, Grip Track.
    • Round hole perforated sheet metal. Examples of trade names are Perf-o-grip, Safety-grip, Shur Grip, Ry-Grip, Open Grip and Grate Lock.
    • Raised dimple perforated sheet metal. Examples of trade names are Traction Tread, Safety Tread, Shur Step, Ry-Tread and Tread Grip.

    The excellent self-cleaning characteristics of plain surface grating make it suitable for the majority of applications. In the presence of fluids or materials that could cause the top surface of the grating to become wet or slippery, specification of the optional serrated surface should be considered. When serrated grating is specified, the bearing bar depth must be 1/4 inch greater than the sizes shown on the load tables to provide the equivalent strength of non-serrated gratings.a

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    Little things like uploading a profile picture make the community a better place. Thanks!
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    March 20
  • Hi,
    I have a problem with finding a materials to use for my casting. I have done a silicone mould and fiberglass jacket(case) I am making a Venus fly trap that moves, the head is separate to the body, together the sculpture is around 160cm in height. The top jaw will shut down to the bottom jaw and only the top jaw is what will move. It is quite big 75cm in length and inside it is about 15-20cm in thickness, a lot more thicker where the neck of the sculpture is. The top jaw of course has to be very lightweight to support the mechanism. the lighter the better. There has to be a skeleton wire frame inside the top jaw to help bring the top jaw down. I have been experimenting using foam but it is way too heavy. I now have moved on to other ideas such as using a P2A silicone coasted ripstop nylon material which I'm not sure about yet nor how I can bond it well with silicone or even a lighter weight 010 soft foam, though my budget is quite low I can't afford many experiments. The mould I have is made from rubber silicone and I know that silicone on silicone sticks to itself so I'm a bit cautious when using the same material unless there is a way to make it work with a good release agent. I also need a material that will not tear when I place the wire inside for fear that foam will get torn by constant movement. I suppose the wire skeleton has to be sandwiched into the fabric and the other material I am now looking for. What is the best way to do this. I am very stuck and I do not get much help at my university to finish my sculpture. 

    best wishes!
    Judith
    March 20
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