In all the years of being involved in different projects, I have often been faced with recurring questions about filament winding products: Is GRP the same as FRP? What about RTRP? Which types of resins exist? What about the reinforcement? And what about the...
The GRP pipe wall, or to be more precise, the RTRP/RPMP pipe wall (Reinforced Thermosetting Resin Pipe/Reinforced Plastic Mortar Pipe) consists of three layers, perfectly adherent to one another and each having different characteristics and properties in relation to...
In order to have a good understanding of how the GRP pipes behave, we must understand their viscoelastic behavior. The relationship between the stress and the strain, i.e. the structural response of the plastics, varies from viscous to elastic. This means, that most...
Selling GRP pipes is a lot like dating. What most companies do is the following. They go out into the marketplace, push offers to prospects and ask complete strangers to marry them! If you think about it in this way, it becomes quite difficult to convince technical...
Temperature is a catalyst. Are your beliefs about heating the resin in the daily tanks correct? Many technicians who utilize polyester or vinyl ester resins tend to allocate little attention to this aspect or think that they are fairly familiar with it. In...
