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Protein Gels
Find the right Bio-Rad protein gel for your application.
Western Blotting Selector Tool
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Finding the right products for you using the free Western Blot Selector Tool
Get the best reagents and consumables to ensure optimized western blotting performance.
SDS-PAGE & Native PAGE Gels
| Product | Handcast Gels | Precast Gels | ||||||||||||||||||
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| Key Benefits |
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| Average Run Times |
15–20 min | 15 min | 20 min | 60 min | 60 min | |||||||||||||||
| Gel Percentages | View migration chart to determine the best gel percentage | View migration chart | View migration chart | |||||||||||||||||
| Gel Size (W x L) | Handcast mini or midi (up to 13.3 x 8.7 cm) |
Mini (8.6 x 6.8 cm) | Midi (13.3 x 8.7 cm) | |||||||||||||||||
| Wells (Volume) | See Mini-PROTEAN Tetra Handcast Systems or Criterion Empty Cassettes for comb availability |
8+1 (30 µl) 10 (30 µl) 10 (50 µl) 12 (20 µl) 15 (15 µl) IPG (7 cm strip) |
12+2 (45 µl) 18 (30 µl) 26 (15 µl) Prep+2 (700 µl) IPG+1 (11 cm strip) |
12+2 (45 µl) 18 (30 µl) 26 (15 µl) Prep+2 (700 µl) IPG+1 (11 cm strip) |
12+2 (45 µl) 18 (30 µl) 26 (15 µl) Prep+2 (700 µl) IPG+1 (11 cm strip) |
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| Shelf Life | 4 weeks (poured) | 1 year* | 1 year* | 3 months* | 1 year* | |||||||||||||||
| Native PAGE? | Yes | Yes | Yes | Yes | No | |||||||||||||||
| Electrophoresis Chambers |
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| Required Equipment and Supplies |
Stain-free enabled imager required for stain-free gels | MOPS or MES buffer required |
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* From date of manufacture.
Specialized Gel Chemistries
| Product | Gel Size (W x L) | Wells (Volume) | Gel Percentages | Shelf Life* | Electrophoresis Chambers | |||
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| Tris-Tricine Gels— for separating peptides and small proteins | ||||||||
| Mini-PROTEAN Tris— Tricine Precast Gels |
Mini (8.6 x 6.8 cm) | 10 (30 µl) 10 (50 µl) 12 (20 µl) 15 (15 µl) |
View migration chart |
14 weeks |
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| Not available in Japan Criterion Tris-Tricine Precast GelsCriterion Tris-Tricine Precast Gels |
Midi (13.3 x 8.7 cm) | 12+2 (45 µl) 18 (30 µl) 26 (15 µl) Prep+2 (700 µl) |
12 weeks |
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| XT Tris-Acetate gels— ideal for separating high-MW proteins | ||||||||
| Not available in Japan Criterion XT Tris- Acetate Precast GelsCriterion XT Tris- Acetate Precast Gels |
Midi (13.3 x 8.7 cm) | 12+2 (45 µl) 18 (30 µl) 26 (15 µl) PG+1 (11 cm strip) |
View migration chart |
8 months |
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| Isoelectric focusing (IEF) gels— for separating proteins based on net charge | ||||||||
| Not available in Japan Criterion IEF Precast GelsCriterion IEF Precast Gels |
Midi (13.3 x 8.7 cm) | 12+2 (45 µl) 18 (30 µl) 26 (15 µl) |
26 weeks |
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| TBE/TBE-urea gels— for high-resolution nucleic acid separation | ||||||||
| Mini-PROTEAN TBE Mini-Gels | Mini (8.6 x 6.8 cm) | 10 (30 µl) 10 (50 µl) 12 (20 µl) 15 (15 µl) |
View migration chart |
8–14 weeks |
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| Not available in Japan Mini-PROTEAN TBE-Urea Mini Gels Mini-PROTEAN TBE-Urea Mini Gels |
Mini (8.6 x 6.8 cm) | 10 (30 µl) 10 (50 µl) 12 (20 µl) 15 (15 µl) |
8–14 weeks |
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| Not available in Japan Criterion TBE and TBE-Urea Midi GelsCriterion TBE and TBE-Urea Midi Gels |
Midi (13.3 x 8.7 cm) | 26 (15 µl) | 12–14 weeks |
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Convert to TGX Precast Gels
Ready Gel Precast Gels have been discontinued. Replacement gels include TGX and TGX Stain-Free Precast Gels, providing faster run times, longer shelf life, and stain-free imaging capability.
To find recommended replacements for Ready Gel products, search the Discontinued Products page for a discontinued item or catalog number, or download one of the selection guides below.
