Information

  
1 package (1/4 oz.) unflavored gelatin
3 TBS. boiling water
1 TBS. vinegar
1 tsp. glycerin

 In a pan, add gelatin to boiling water. Stir until gelatin is completely dissolved. Add the vinegar and glycerin while stirring until mixture is well blended.
Makes 1/3 cup.

While the glue is still warm, apply a thin layer with a brush. This glue is
waterproof and is excellent for binding leather to leather & fabric to cardboard. Store in a tightly  capped plastic or glass jar and it will keep for several months. If the glue gels in the bottle, you can reuse it by warming under hot water.