Sound Seal Expands on our Poly-Coustix® line with the addition of Oblix and Vertex Slim Share Article Sound Seal, a leading manufacturer of noise control products serving the industrial, architectural, commercial and construction industries, is pleased to announce the addition of two new products to our Poly-Coustix Contemporary Acoustical Product line. Introducing, Vertex Slim™ and Oblix™ Oblix & Vertex Slim by Sound Seal "Vertex Slim and Oblix expand the Poly-Coustix line to include a more robust selection of visually stunning ceiling applications.” AGAWAM, Mass. (PRWEB) April 06, 2021 Sound Seal, a leading manufacturer of noise control products serving the industrial, architectural, commercial and construction industries, is pleased to announce the addition of two new products to our Poly-Coustix Contemporary Acoustical Product line. Introducing, Vertex Slim™ and Oblix™