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This product is now discontinued - Replaced by Critwax

Model/Variant: CNP-TUB7-CLAY  Description: Critoseal is sold as a pack/box of six trays per unit

NB. Includes a $10.00 shipping fee for orders totaling less than $100.00.  Why you should buy from us.

Critoseal® is a capillary tube sealant that uses a heatless method for sealing any type of capillary tube. Critoseal® is a vinyl plastic putty that will not dry out but remains soft and pliable.

Press the tip of the capillary tube into the material and twist slightly. The resulting plug of plastic putty bonds to the internal wall of the capillary tube to form an impermeable seal, against which the blood cannot pass under centrifugation. The plugged end of the loaded capillary tube can then be pushed into one of the paired storage receptacles designed to hold the prepared capillary tubes ready for loading in the micro haematocrit. The tubes are gripped firmly by the plastic locator receptacles and will not spill or detach if the tray is accidentally knocked, tilted or inverted.

Clean and white, Critoseal® provides a flat, easily seen, contrasting line of demarcation against the red blood cells, making for easy reading of haematocrit values. PCV values can be determined with any hematocrit tube reader. The tip-resistant Identi-tray has 24 numbered slots with two holes each, enabling sample identification and storage of paired tube samples.

Each tray contains enough sealant for several hundred tube plugs. Critoseal® is sold as a pack/box with six 6 trays of sealant per unit.