Rectorseal's New Wide Mouth Gallon Cans for PVC Conduit 633L Cement October 19, 2017 Champions Marketing RectorSeal is proud to announce the introduction of the Wide Mouth Gallon PVC Conduit 633L, Low-VOC cement. The part number for this new product is 55979. Our Conduit 633L PCV cement is rated for electrical PVC conduit up to 6 inch schedule 80 pipe. No primer is needed code permitting. The wide mouth can provides contractors easier application on larger PVC pipe applications. The wide mouth gives better pouring capability, the ability to use a larger application dauber and overall ease of use.