Magnum Flex Joint Taping Compound is a highly unique, flexible vinyl based premixed formulation. It is designed to minimize drywall joint cracks caused by structural movement or wood framing expansion / contraction. FJS-727 is to be used for embedding drywall tape, and first coat over fasteners and drywall trims. Use on interior wallboard surfaces only.

•    Elastomeric when dry
•    Less air than other compounds
•    Factory premixed
•    Excellent adhesion
•    Low shrinkage
•    More open time/Less tool drag
•    Extra Strong, flexible Joints
•    Excellent thru Automatic taping tools

Site Requirements and Storage:
•    Maintain 55F building temperature
•    Provide adequate mechanical ventilation
•    Protect from freezing, extreme heat, direct sunlight
•    Rotate stock every 90 days

Approx 1 pail per 600 sq ft of gypsum panel

 4.5 gallon (17.1 L) plastic pail

Final wallboard finish should comply with the Five Levels of Gypsum Board Finish approved by the Gypsum Association, The Painting and Decorating Contractors of America, the Drywall Finishing Council, and The Association of Wall and Ceiling Industries.


Meets ASTM C475-89.
FJS-727 Taping is part of Magnum’s Flexible Ready mix system and is to be used to tape and fill joints, then finished with any of Magnum’s other Ready Mixed Compounds

May contain mica, talc, limestone, perlite, clay and latex. Caution: sanding is not possible due to the highly flexible and elastomeric nature of this product.  Must not be taken internally.  Keep Out Of Reach Of Children. Ingredient Information: 913-888-0882