BioSciences - Polysciences, Inc.

Histology & Microscopy
Plastic Embedding Media & Kits
BioSciences
Araldite resins (modified epoxy resins)
Araldite 502 Kit, Luft’s Formula EHJO7g .......................................
Araldite 502 kit, Luft’s Formula overcomes penetration difficulties by using propylene
oxide as an additional clearing agent. Permits embedding of tissue from
fixation to sectioning in about 24 hours. Technical Data Sheet #128
Kit Contains: 500g Araldite 502, 450g DDSA, 100g DMP-30, instruction sheet
J. Biophys. Biochem. Cytol., 9, 409 (1961)
Araldite 502/PolyBed 812 Kit EHJO7g .........................................
Mollenhauer suggested that hardness variation and penetration enhancement could be obtained
by mixing Araldite and Epon resins. We offer Araldite 502 and PolyBed 812 for researchers to utilize
Mollenhauer’s findings. PolyBed 812 is an exact chemical match for Epon 812. Both Araldite 502
and Polybed 812 are useful as an embedding medium with acetone or alcohol dehydration.
Kit Contains: 500g PolyBed 812, 500g Araldite 502, 450g DDSA, 100g DMP-30, instruction sheet
Technical Data Sheet #128 Stain Tech., 39, 111 (1963)
Catalog # Size
Araldite resins (modified epoxy resins) [84-74-2] HO5g
TSCA C 6 H 4 -1,2,-[CO 2 (CH 2 ) 3 CH 3 ] 2
WPE is Weight Per Epoxide equivalent. From this value, one determines the optimum amount of
DDSA or NMA in grams to combine with 100 grams of resin for stoichiometric balance minimizing
unreacted starting materials and producing reproducibly stainable, embedding blocks. The exact
WPE value for each lot of Araldite resin is put on the label of each container.
Technical Data Sheet #128
Grade WPE
Araldite resins (modified epoxy resins), Grade 502 502 233-250 00552-500 500 g
Araldite resins (modified epoxy resins), Grade 6005 6005 182-189 02116-500 500 g
Mixing Chart for Araldite ® Resins, DDSA and NMA
Per 100g of epoxy
as supplied at WPE
Mix this many
grams of (soft mix) DDSA
Mix this many grams of
(hard mix) NMAA
170 85 78
175 83 76
180 81 74
185 78 72
190 76 70
195 74 68
200 73 66
205 71 65
210 69 63
215 67 62
220 66 60
225 64 59
230 63 58
235 62 57
240 60 55
245 59 54
250 58 53
The hard mix and the soft mix are then blended according to the desired
hardness of the particular embedment procedure.
02600-1 1 kit
02595-1 1 kit
For more information please call (800) 523-2575 or visit: polysciences.com 45