Low surface energy adhesive

An adhesive comprising:

• a) an acrylic copolymer comprising the reaction product of
• i) a first alkyl (meth)acrylate, wherein the alkyl group of the first alkyl (meth)acrylate comprises at least 5 carbon atoms;
• ii) a second alkyl(meth)acrylate, wherein the alkyl group of the second alkyl (meth)acrylate comprises 1 to 4 carbon atoms;
• and
• iii) a vinyl carboxylic acid;
• and
• b) a high Tg tackifier having a glass transition temperature of at least 20° C.;
• and
• c) a low Tg tackifier having a glass transition temperature of no greater than 0° C.,
• wherein the glass transition temperatures of the high Tg tackifier and the low Tg tackifier are greater than the glass transition temperature of the acrylic copolymer,
• wherein the weight ratio of the first alkyl (meth)acrylate to the second alkyl (meth)acrylate is between 3:1 and 1:3, and the acrylic copolymer comprises at least 3% by weight and no greater than 8% by weight of the vinyl carboxylic acid;
• and wherein the adhesive comprises 35 to 45% by weight of the high Tg tackifier and 2 to 13% by weight of the low Tg tackifier, based on the total weight of the acrylic copolymer, the high Tg tackifier and the low Tg tackifier.