SETTING BLOCKS
What is a setting block and what is it used for?
A setting block (also known as a "spacer" in residential window and door manufacturing) is an extruded component used to properly position and support glass, insulated glass units, or panels within a frame. They ensure the glass has uniform edge clearance, distribute weight evenly, and protect the edges from damage during installation and throughout the product’s lifespan.
How do setting blocks protect glass and glazing systems?
Setting blocks isolate the glass from directly contacting the metal frame channel. This isolation allows for natural expansion and contraction, absorbs vibration and shock, and safely transfers loads. Properly sized and placed blocks are essential for preventing edge stress breakage and minimizing sealant failures.
What sizes and formats are setting blocks available in?
Meltpoint Plastics manufactures setting blocks in a variety of materials, hardness ranges, and dimensions to fit specific system designs. They can be supplied as continuous extruded rolls or cut to custom sizes, shapes, and lengths to meet your exact installation requirements.
Are there specific industry standards for setting block installation?
Yes. To ensure long-term performance and maintain the validity of your glass warranties, setting block selection and placement should comply with several industry guidelines. These include ASTM C864 (for the blocks themselves), ASTM C920 (for sealant compatibility), ASTM C1036 / C1048 (glass standards), and the GANA Glazing Manual for placement and load distribution.
Why should I choose Meltpoint Plastics setting blocks?
Meltpoint Plastics produces precision-extruded setting blocks that strictly adhere to standard tolerances. This ensures that every batch delivers consistent thickness, an accurate durometer (hardness), and uniform density to meet the rigorous demands of commercial and residential glazing professionals.
Setting Blocks
Dimension Guide:
A = Height | B = Width | C = Length
| Product Code | Material | Dim A (Height) | Dim B (Width) | Dim C (Length) | Box Quantity |
|---|---|---|---|---|---|
| MPI-94502-BK-2 | Silicone | 3/16" | 3/4" | 2" | 2,500 pcs |
| MPI-94502-BK-4 | Silicone | 3/16" | 3/4" | 4" | 1,000 pcs |
| MPI-94503-BK-5 | Silicone | 3/8" | 1" | 5" | 1,000 pcs |
| MPI-94571-BK-2 | Silicone | 1/8" | 3/4" | 2" | 3,000 pcs |
| MPI-94571-BK-4 | Silicone | 1/8" | 3/4" | 4" | 1,500 pcs |
| MPI-94573-BK-5 | Silicone | 1/8" | 1" | 5" | 1,000 pcs |
| MPI-104502-BK-2 | EPDM | 1/4" | 1 1/8" | 2" | 1,000 pcs |
| MPI-104508-BK-2 | EPDM | 1/4" | 1/2" | 2" | 2,500 pcs |
| MPI-104569-BK-2 | EPDM | 3/16" | 1/2" | 2" | 2,500 pcs |
| MPI-104659-BK-3 | EPDM | 3/16" | 1/2" | 3" | 2,500 pcs |
| MPI-4508-BK-4 | TPV | 1/4" | 1/2" | 4" | 1,500 pcs |
| MPI-4532-BK-2 | TPV | 1/4" | 1/2" | 2" | 1,200 pcs |
| MPI-4532-BK-4 | TPV | 1/4" | 1/2" | 4" | 1,200 pcs |
| MPI-4553-BK-4 | TPV | 1/8" | 1/2" | 4" | 3,000 pcs |
| MPI-4569-BK-4 | TPV | 3/16" | 1/2" | 4" | 2,500 pcs |
| MPI-4573-BK-0.5 | TPV | 1/8" | 1" | 1/2" | 8,000 pcs |
| MPI-4590-BK-4 | TPV | 3/4" | 1/4" | 4" | 1,500 pcs |