C&T PUBLISHING-TimTex Interfacing Craft Pack. TimTex is 100% polyester for consistent thickness and texture. Firm yet flexible interfacing it is perfect for shaping into purses, bowls and other three-dimensional craft projects. Easy to cut, mark and sew. Machine wash and dry. This package contains one 15x18 inch sheet and complete instructions for use and care. Imported. Shop TimTex Craft Pack Interfacing, 15" x 18" at Michaels. com. Firm yet flexible interfacing it is perfect for shaping into purses, bowls and other three-dimensional craft projects. TimTex is 100% polyester for consistent thickness and texture. Firm yet flexible interfacing it is perfect for shaping into purses, bowls and other three-dimensional craft projects. Easy to cut, mark and sew. Details: White 15" x 18" Easy to cut Machine wash and dry Includes instructions Polyester. TimTex Craft Ct Interfacing, 15" x 18" Michaels.