Linseed Oil Base three part No-Bake System, Used as a Binder for
getting high strength, good collapsibility and very high scratch
hardness of the molds and cores. It is the most popular and robust
sand binding system and most economical, flexible to atmospheric
and sand variations. There are different resin systems for sand
bonding in general foundry usage. Presently most popular Resin Bonded
systems are: Shelf life is 12 months.
Two-Part Phenolic No-Bake System: It is a system
with Phonic Resin as a binder and Acid as a catalyst. It is temperature,
Humid and Sand Sensitive. It is recommended for only continuous
mixers. This system is not recommended for Batch mixers and manual
mixing. In this system sand can be reclaimed and reused. Shelf life
is 4 weeks.
Two-Part Furan No-Bake system: This is also acid
Cured two part No-Bake system with zero Nitrogen. It is also recommended
for continuous mixers. This sand system can be reclaimed. Now this
system is becoming more popular and it is also robust and more flexible
system. Shelf life 6months.
Cold Box No-Bake System: This is Three Part Amine
gas cured system. It is used for mass production and high quality
standards and close dimensional accuracies. It is one of the costly
systems. Sand can not be reclaimed. Shelf life is 6months.
Phenolic Formaldehyde Two - Part System: It is
cured with powder catalyst when it is mixed with hot cured resin
mixed sand. It is used to make resin coated sand. Shelf life is