How To Glue Plexiglas

Plexiglas is a strong, transparent plastic with many uses.You will need a special type of glue called methylene chloride to bond two pieces because it is transparent and needs to perform well in high-stress applications.The methylene chloride is a type of solvent cement that works by melting the acrylic.

Step 1: The workspace should be solid.

The workspace should be made of wood, metal, or concrete.Grass and paper are not good choices as the Plexiglas can adhere to them.

Step 2: The Plexiglas should be cut.

Cut the pieces to the size and shape you want them to be.If you want to cut thicker glass with a table saw, it’s best to use a quarter inch.Pieces that are thinner than this can be scored with a utility knife and snapped apart, but only along straight lines.If your cut edges are rough, sand and polish them so you have a smooth edge on which to apply glue.If applicable, remove the protective film after cutting.

Step 3: It’s a good idea to clean the Plexiglas.

If you want to join the glass, you need to clean the pieces with soap and water.Don’t rub, or you may scratch the surface, after cleaning and rinsing the pieces.You can use alcohol to clean glass.

Step 4: Glue the glass in place.

As they will be joined, fit the pieces together once you have cleaned them.Ensure a snug fit and secure the pieces with masking tape.

Step 5: The glue should be applied to the joint.

The glue must be applied with a needle because it is water-thin and works by melting the acrylic to bond two pieces together.If you want to apply a small amount of methylene chloride to the joint between the two glass pieces, you can use a 25 gauge needle.Gloves and safety glasses are required when applying methylene chloride.Do not press the pieces together if you apply the solvent cement separately.The method will cause a weaker joint and increase the risk of drips.They will destroy any glass they touch.

Step 6: Allow the glue to dry.

The glue should be set for 48 hours.You can remove the tape that held the pieces of the glass together.

Step 7: The joint should be smooth.

Allow the glue to set completely, then use a fine-grit sandpaper to smooth out any rough patches of glue.When you are done sanding, wash the glass with soap and water.

Step 8: Make sure the joint is strong.

If the glass will be used to hold water, you should check your joint for leaks.Check for leaks by running water over the joint or putting the piece in the water.Apply more glue to the joint if the glass leaks.

Step 9: Finished.