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NEW! PVA (Alcohol) Stiffener

NEW! PVA (Alcohol) Stiffener

PVA (Alcohol) Stiffener
  • PVA (Alcohol) Stiffener
  • PVA (Alcohol) Stiffener
Additional Information: 

An all purpose sizing in powder form. Just mix with water. See our suggested use ratio below for mixing powder to water. This product is stable and is not Classified as ORM-D. It can be shipped overseas.


Mix this powdered sizing with water to make an ideal solution for stiffening straw, felt, leather and many other items, including silk flowers.

Instructions for use:

  • Presoak powder in cold water (1 hour). Stir enough to moisten and then allow it to set. It is important to use a heat resistant bowl or saucepan, preferably glass. Best practice is to wear a mask when working with powders.
  • Once the PVA powder has absorbed water it is ready to heat over low heat. Place a pan of water under bowl of solution and slowly heat. Stir often. The solution needs to dissolve completely.  PAY ATTENTION to this step. This is an alcohol based product, do not walk away while heating.
  • Stirring frequently helps make a smooth mixture. When ready, you may want to strain mixture through a sieve or cheesecloth to remove any remaining lumps. Allow to cool at room temperature.
  • When cool, store in air tight container. It can be stored at room temperature for up to one year.
  • Sizing solution can be sponged on to hat surface, dipped, or sprayed (ratio of water to powder varies for how it is used and your preference of stiffening).
  • Sponge off excess sizing, steam* and block. *Steaming the hatbody while sizing is still wet forces the sizing from the surface allowing it into the hat fibers.

Suggested Ratio:

Straw or Leather - 1 cup water to 1 Tbl powder

Felt – 1/2 cup water to 1 Tbl powder

Experimenting is going to be your best teacher. What ratio you will use for your stiffener mix all depends on the fiber, the saturation, and your stiffness preference. 

Another mixing option is: Place mixture into a quart canning jar and place in a sauscepan of boiling water. Turn off heat. Stir contents periodically to help the powder dissolve. This is a fairly simple method and usually does not require straining prior to use. The mixture can be stored in the canning jar.


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