3D Printing, 3D CAD Design and Rapid Prototyping

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PVA – Polyvinyl Alcohol

PVA – Polyvinyl Alcohol is a water-soluble synthetic polymer. PVA has excellent film forming, emulsifying and adhesive properties. It is also resistant to oil, grease and solvents. It is odorless and nontoxic. It has high tensile strength and flexibility, as well as high oxygen and aroma barrier properties.

PVA Possible Uses

PVA – Polyvinyl Alcohol
PVA – Polyvinyl Alcohol Product
In 3D printing, PVA is sometimes used in printers with dual or multiple-extruders, in order to provide a support structure to an object with overhang issues. Some complex prints involving lots of extended overhangs can be realised only by printing such a support structure. Otherwise, the printed structure would warp or simply collapse.

PVA Probable Features
A finished 3D printed product can be put into water until the PVA has completely dissolved, freeing the object of the support structure, without the need of any pesky manual post-printing curing.

PVA Possible Disadvantages
PVA should be stored in a sealed box or container and may need to be dried before use. Another disadvantages of PVA include its high price difficult sourcing.

PVA – Polyvinyl Alcohol some available colors;
Solid raw form usually clear white.

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