Ultra Hold Adhesive 1.4oz with brush applicator. Ultra Hold is probably one of the strongest of the acrylic adhesives for securing your lace front unit or toupee. You can achieve 3 weeks hold from one application, although it can last some people for as long as 6 weeks. It comes in a glass bottle with applicator brush in the cap. Contains Toluene until dry. Lace front adhesives come in a broad range of strengths in either tape or liquid. Your own body chemistry will affect how long and how well each product works for you. If you are an active person or find you perspire a lot, then this adhesive will be most suitable.