Cryogenic Products

Foam vessels are in stock and available for immediate order.

Our most popular standard product is a foam vessel that holds 800 ml of liquid nitrogen. The shape of the foam dewar is circular, with a protruding handle, so that it resembles a large teardrop. Each bowl shaped vessel comes with a matching foam lid to insulate the contents from ambient air.

The price per unit is $100. The dimensions of the cylindrical cavity in this standard size vessel are 5.8 inches in diameter by 2.8 inches deep.

For custom designed foam dewars, please contact us for more information. We would like to assist you with any special cryogenic requirements that you may have for research, industry or education.

Our standard foam vessel, designed to replace a low-profile Dewar, was originally developed at the Advanced Light Source of the Lawrence Berkeley National Laboratory, and is made of a durable and chemically inert foam with excellent insulating properties.

Its patented design makes the foam vessel easier to handle and safer to use than a traditional low profile glass Dewar. Also, because of its lower thermal mass, a foam vessel will cause less liquid nitrogen boiloff when it is filled. It also will accumulate less frost during regular use. the end result is that less LN is consumed.

You can reach SpearLab by telephone in the 415 area code at 860-6170.

E-mail inquiries can be addressed to "info @ spearlab.com " (remove the blank space in the preceding email address).

To place an order, have your purchasing department contact us, or else send an email. We accept checks, money orders, electronic payments, and traditional purchase orders.  You also may use the shopping cart feature on the "Products" page of this site, for online credit card payments.

Jon Spear / SpearLab

1830 Ortega St.

San Francisco, CA 94122

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