Teach Soap

I just found these cute ice cube trays on sale. The minute I saw them I thought "these would make cool shaped soaps!" he he
But before I bought them I thought of coming to the forum and ask you guys if they are safe to use as a soap mold. They are not made up of silicone, one of them says it's made of SBS plastic resin and the other one says synthetic rubber.
Are these materials safe and practical to use as CP soap molds?

I don't know about the plastic resin, but the rubber should be fine.

ABS plastic resin Features & Benefits:
•Easily machined, tough, low cost rigid thermoplastic material with High impact strength.
•Ideal for turning, drilling, milling, sawing, die-cutting, shearing.
•Good chemical and stress cracking resistance to inorganic salt solutions, alkalis, acids, and some oils.
•Excellent abrasion resistance; electrical properties, moisture and creep resistance.

_________________
Irena
Closed minds are like faulty parachutes; they refuse to open.

Thanks soapbuddy!
I had my doubts on the plastic resin one too. It said it is pliable and dishwasher safe but I don't know if the cp soap might get stuck on it.

_________________
Irena
Closed minds are like faulty parachutes; they refuse to open.

ewww fumes! that's scary! Definitely the plastic resin one is off my list!
Thanks soapbuddy! as always you rock!!

_________________
Irena
Closed minds are like faulty parachutes; they refuse to open.