Vako Seals Private Limited manufactures High Molecular Weight Poly Organo Siloxanes. Vako Seals Private Limited is an ISO 9001:2000 awarded company. The company manufactures elastomeric seals, sealing elements and various rubber products having the requisite capacity to cater to the requirements of a vast clientele. The High Molecular Weight Poly Organo Siloxanes have excellent cold flexibility as well as high thermal resistance. They have excellent di-electric properties and very good resistance to attack by oxygen, ozone and sunlight. They however have moderate resistance to mineral oils. The most admirable property of this polymer is its very wide service temperature range i.E. -65° C to 250° C.