A core-sheath filament having a non-tacky sheath and a hot-melt processable adhesive core, the sheath exhibiting a melt flow index of less than 15 grams per 10 minutes, is provided. Methods of making the core-sheath filament and methods of using the core-sheath filament to print a hot-melt processable adhesive onto a primer-treated substrate surface to provide a structural bond are described.

A method for adhesively bonding components, in particular a lamp holder on a mounting, wherein the method includes at least the following steps: producing a load-bearing adhesive bond by means of introducing a slowly curing adhesive into or onto an adhesive receptacle between the components; arranging at least one light-transparent fixing element in physical contact with at least one of the components; adhesively bonding the fixing element to at least one of the components by means of introducing a fixing adhesive at fixing bonding points; transmitting light from a light source through the fixing element to cure the fixing adhesive at the fixing bonding points; and long-time curing of the slowly curing adhesive of the load-bearing adhesive bond.

A method for adhesively bonding components, in particular a lamp holder on a mounting, wherein the method includes at least the following steps: producing a load-bearing adhesive bond by means of introducing a slowly curing adhesive into or onto an adhesive receptacle between the components; arranging at least one light-transparent fixing element in physical contact with at least one of the components; adhesively bonding the fixing element to at least one of the components by means of introducing a fixing adhesive at fixing bonding points; transmitting light from a light source through the fixing element to cure the fixing adhesive at the fixing bonding points; and long-time curing of the slowly curing adhesive of the load-bearing adhesive bond.

An object is to provide a composite pre-bonding treatment method that stabilizes quality of a bonded part. The present disclosure provides a composite pre-bonding treatment method performed when bonding a composite material to a member. The method includes: (S2) attaching an absorber adapted to absorb a contaminant to a surface of a prepreg laminate that is a precursor of the composite material; (S3) covering the prepreg laminate with a packaging material from above the absorber; (S4) vacuuming the packaging material and heating the prepreg laminate at a temperature lower than a curing temperature of a prepreg; (S5) then removing the packaging material; (S6) peeling off the absorber; (S7) attaching, to a surface of the prepreg laminate with the absorber peeled off, a release member that does not transfer silicone or fluorine to a resin, and then (S9) curing the prepreg laminate to mold the composite material; and (S11) peeling off the release member from the composite material before bonding the member.

Provided are primer formulations for solvent cement bonding comprising cyclopentanone and, optionally, at least one additional organic solvent. The primer formulations are effective for solvent cement bonding plastic components together, wherein the plastic components may include ABS, PVC, or CPVC pipes and/or fittings.

A preparation method for adhesive bonding of magnesium-containing aluminum alloy products includes a magnesium-containing aluminum alloy product including a matrix and a surface oxide layer overlying the matrix. The magnesium-containing aluminum alloy product also includes intermetallic particles at least proximal the surface oxide layer. The method also includes ablating at least some of the intermetallic particles via an energy source, and in the absence of melting of the matrix of the magnesium-containing aluminum alloy product.

A preparation method for adhesive bonding of magnesium-containing aluminum alloy products includes a magnesium-containing aluminum alloy product including a matrix and a surface oxide layer overlying the matrix. The magnesium-containing aluminum alloy product also includes intermetallic particles at least proximal the surface oxide layer. The method also includes ablating at least some of the intermetallic particles via an energy source, and in the absence of melting of the matrix of the magnesium-containing aluminum alloy product.

Adhesion-regulating agents for enhancing the adhesion values of acrylic adhesives, and methods of using adhesion-regulating agents for treating a removable flooring substrate surface for tuning the adhesion of the flooring substrate surface to objects comprising an acrylic adhesive are disclosed.

Adhesion-regulating agents for enhancing the adhesion values of acrylic adhesives, and methods of using adhesion-regulating agents for treating a removable flooring substrate surface for tuning the adhesion of the flooring substrate surface to objects comprising an acrylic adhesive are disclosed.

The invention particularly relates to a method of applying a permanent coating to a plastic surface of a first part, comprising the following steps: applying to said plastic surface a layer of a polyamide-based hot-melt material, maintaining this layer of hot-melt material on said plastic surface for a period of time ranging from a few minutes to several hours, removing this layer of hot-melt material from this plastic surface; and applying a permanent coating to said surface, said permanent coating being based on polyurethane, an epoxy resin or polyesters, a polycarbonate and/or an acrylic resin; as well as the use of such a method in the automotive industry.