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The machine USES paint crosslinking agent
2017-7-12 23:11:17
The machine USES paint crosslinking agent
Before crossing the link, use a sharpened blender or putty knife to clean up excess material left outside the edge. The glass fiber cloth or tape can be used to cover the filling area (or after the machine is crosslinked with crosslinking agent and sand).
After full cross-linking, use 80 pieces of sand paper to make sand smooth. Wipe off any dirt, clean the surface and apply the machine to the entire filling area prior to completion using crosslinking agents or other coatings.
Connecting fasteners and accessories. Installing screws and other screw fasteners greatly improves the load capacity of WEST SYSTEM epoxy. According to the different fastening method, the attached accessories have their own requirements. The bond strength depends on the method or level of the attachment.
Join the base fastener. To improve the pull strength and waterproof connection, the easiest way to do this is to remove the fastener holes and the wet places outside the new guide holes before installing the screws. The hole is made to penetrate the epoxy resin into the fiber and effectively increase the diameter of the fastener. The epoxy resin also provides stronger fastening to the wood grain and prevents moisture from entering.
Drill a standard size guide hole outside. The mixture is injected into a clean hole through a tube or syringe at work. The thick epoxy resin as the second coating must be stripped or enlarged. Insert the fastener in the hole and allow the epoxy resin to cross.
Fastener further join. For greater strength and stability, increase the area and quantity of the exposed area of epoxy resin near the fastener hole. If this clamping method can be replaced by other tool clamps, increase the size hole to extend to the fasteners.
Drill fasteners, increase the depth of the hole is two-thirds - 3/4 ". The diameter can be twice the diameter of the fasteners. At the bottom of the oversize holes, drill a normal size flow guide hole for fasteners straight body. Used to keep the normal size of the flow guide hole or clamp attachments until epoxy crosslinking.
Wet the holes and fasteners with epoxy resin. Until the epoxy resin is thoroughly soaked into the wood. Fill the hole with a thickened epoxy resin/binder filler. Use a 404 high density (preferred) or 406 colloidal silica gel. Before the epoxy resin is fully crosslinked, it is necessary to keep its position stable with sufficient strength in the place where the fasteners are installed. Until cross-linking.
Chinese name: Diethyl toluene diamine(DETDA)Diethyltoluenediamine Uses:
The product is identical to Ethancure 100 and Lonza DETDA 80, DETDA is very effective polyurethane elastomer chain extender; also be used as polyurethane and epoxy resin curing agent, epoxy resin of an antioxidant, industrial oils and lubricants . In addition, also as intermediates in organic synthesis.Especially for the RIM (reaction injection molding), is important in the field of spray polyurea chain extender species. Also can be used for casting polyurethane elastomer (CPU) and a curing agent, epoxy curing agent, epoxy resin of antioxidants, lubricants and industrial oils other antioxidants.
The attachment is only for fastening. From the adhesion surface you can increase the load capacity of the attachment as much as possible, and provide the attachment with the attachment of the surface solid. Underneath it can also seal wood, and a solid, durable appendage.
Prepare a smooth surface and attached basis for good adhesion. Wetting the hole with epoxy resin. Allow the epoxy resin to soak into the wood to expose the wood grain (with quick bonding). The bottom is covered with an undiluted epoxy resin covering the contact surfaces of the attachment. Use a wire brush or 50 pieces of sand paper to sand the surface of this wet epoxy resin.
Inject an undrooping epoxy resin / 404 or 406 mixture into the hole. Use enough mixture to insert the fasteners into the hole without futility. Cover the bottom of the attachment and fastener with a thickened epoxy resin. Put the attachment in position. Insert and tighten the fastener until the small amount of mixture is pressed out from the joint.
During the application period, remove excess epoxy resin or fill in shape. The epoxy is then crosslinked completely, generally at least 24 hours. It may take more time in cool weather. When installing the attachment, use a thickened epoxy resin to make a base under the attachment for a curved or uneven surface, or a sloping surface.
Prepare fasteners, holes, bottom and foundation as mentioned above. Block the base with a small block to the desired height and position to form a supporting base (such as the winch foundation). Cover the block with a strong enough epoxy resin. If the difference between the bottom and the surface is more than 1/2 "above, you should do 2 layers to avoid heat release.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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