Product Finder for All Products

Back to All Products

Product Info for UNITHANE 351 NF


UNITHANE 351 NF is a medium/soft, lightfast, NMP-free waterborne polyurethane, designed for use as a resin binder for basecoats where it has superior elasticity and recovery adhesion, water resistance and abrasion resistance. UNITHANE 351 NF has good filling properties on porous substrates and very good compatibility with waterborne pigments and other additives that are commonly used in waterborne applications.

Industrial Applications:

This product is recommended for: Leather

Product Characteristics:

Product Class Solids % pH Viscosity @25ºC Gloss VOC g/L Tensile (D-882) Elongation (%) Modulus 100% (psi) Sward Hardness
Finishing 31 – 33 9.0 – 10.5 1 – 500 cps.

Full product details can be found in this section:


Special Features: NMP-Free (NF)
Application Types – Leather: Bright, Aircraft, Upholstery, Shoe, Splits, Handbag, Synthetic Leather


Total Solids %: 31 – 33
pH: 9.0 – 10.5
Viscosity @ 25⁰ C: 1 – 500 cps.
VOC (% of total weight): 5.0 – 6.0
Specific Gravity: 1.01 – 1.04
Appearance: Opaque
Freeze/Thaw Cycles (D-2243): 0
Shelf Life: Maximum 12 months
Harmonize Tariff Number: 3909.50.6000

Certified to ISO-9001:2015

Contact Information:

3 Malcolm Hoyt Drive
Newburyport, Massachusetts 01950 ∙ U.S.A.
Tel: (978) 465-1717 ∙ Fax: (978) 465-4194
E-mail: ∙


The information and data contained herein are believed to be correct. However, we do not warrant either expressly or by implication the accuracy thereof.