Q: What type of glue is recommended when laminating with PolyBak?
A: We recommend using a wet PVA Adhesive.
For more information on laminating recommendations, see our Laminating Best Practices Document
Q: How much glue is recommended when laminating with PolyBak?
A: When using PolyBak in a Hot Press: 3-6 Mils of Wet PVA Adhesive When using PolyBak in a Cold Press: 6-8 Mils of Wet PVA Adhesive. For more information on laminating recommendations, see our Laminating Best Practices Document
Q: Can you use solvent based glue with PolyBak?
A: Yes, contact adhesives are commonly used with PolyBak. For more information on laminating recommendations, see our Laminating Best Practices Document
Q: I got the PolyBak wet; when it dries will it be ok to use?
A: If a minimal amount of water gets on the un-sanded side of the product and it is wiped off soon after, the product should be fine to continue processing.
Q: What PolyBak is best for a veneer application?
A: This will vary depending on the material being used. Typically 42-28, 69-20, 69-28 (for dark colored applications) and 67-28 (for light colored applications) are the most commonly used PolyBak products for veneer applications. We also recommend that in this application the PolyBak should be sanded on both sides.
For more information on PolyBak products, click here
Q: Is PolyBak made in the USA?
A: Yes, it’s made in Grand Rapids, MI. For more information on PolyBak products, click here
Q: What type of router bit is recommended?
A: For routing around the perimeter, we recommend a compression router bit. For Pocket cutting / Shallow Dado, we recommend a traditional down shear router bit. For Boring, we recommend using a standard brad point bit.
For more information on machining PolyBak, see our Best Practices for Machining PolyBak Document
Q: Is PolyBak FSC Certified?
A: PolyBak is not FSC Mix or Full certified due to the instability of higher level recycled content in paper. Other FSC certifications do apply. To view our certifications, please click here
Our paper does have a wide range of recycled content, from 18% - 85%.
For information on the recycled content of a specific PolyBak product, please contact Rich Rivera, 616-243-2700.
Q: What LEED credits are available by using PolyBak?
A: PolyBak can contribute to LEED credit points – MR 4.1, MR 4.2, EQ 4.4, EQ 4.5
Q: Do you have a Phenolic Backer replacement?
A: Yes, PolyBak Ultra can replace Phenolic Backer. It has greater strength, an equivalent MVTR rating, and has no added formaldehyde. For more information on PolyBak Ultra, click here
Q: Is PolyBak available in rolls?
A: All models are available in rolls except for PolyBak Ultra. For pricing and sizing information, please contact us
Q: What is the difference between 90-28 and 90-36?
A: 90-36 differs from 90-28 in that it has a higher resin loading and a higher level of moisture resistance than 90-28. For more information on PolyBak products, click here
Q: What is the difference between 69-20 and 69-28?
A: 69-20 has a lower resin loading than 69-28. 69-20 was designed to be an ideal balancing backer for veneer applications. For more information on 69-20, click here
Q: What is tensile strength?
A: Tensile strength measures the stress a material can withstand without permanent deformation.
Q: Which PolyBak model do I use for a balanced panel?
A: Deciding which model of PolyBak to use to balance a specific panel will vary based on the combination of materials used for the application, and the installation style of the final product. We recommend speaking with one of our sales representatives or our sales engineer to determine which model would be best for your application.
Below are PolyBak models commonly used for specific types of applications.
• Veneer backing and cross-band: 67-28, 69-28 and 69-20 (all models, sanded two sides)
• Overlay applications: 42-13, 42-28 and 67-28, 69-20
• Profile wrapping: 42-13
• Balancing Backer: All models, depending on final application
For more information about PolyBak, click here
