Tart and votive/pillar wax:
Problend 450 is the same as KY 133, JS vot pillar votive wax, candles and supplies production pre-blended votive paraffin wax granules.
650 is the same as KY parasoy votive tart wax, JS 50-50 pillar votive wax, candles and supplies production single pour votive/pillar hybrid blend (6028 replacement), Wellington well-pour soy blend granulated votive/pillar wax.
Container wax:
Problend 400 is the same as JS 123 wax. Also possibly columbus candle supply CCS-P1. I emailed them asking if the melt point of 155 they listed is a typo as they listed that on their granulated wax as well. Plus I've never seen a creamy one pour to be that high of a melt point.
Problend 600 is the same as JS 50-50 container wax, Wellington well-pour soy blend container wax, candles and supplies production single pour container wax.
Hope this helps.