The complete indicating range side by side — orange cobalt-free beads, blue crystals and blue beads — so you can pick the end-point behaviour that suits your enclosure.
Bulk Silica Gel
Three indicator chemistries, one specification sheet
Three indicating options are supplied, and the right one depends on what you can see and what you can accept chemically. Orange beads are cobalt-free and turn light green. Blue crystals contain cobalt and turn light pink. Blue beads turn white. Where the indicator is visible through a window or a translucent sachet, the contrast of the end state matters as much as the chemistry.
| Orange beads | Cobalt-free · orange → light green |
|---|---|
| Blue crystals | Contains cobalt · dark blue → light pink |
| Blue beads | Blue → white |
The indicator reports its own condition — no weighing, no fixed replacement schedule.
Orange → Light green
Cobalt-free beads
Dark blue → Light pink
Crystals — contains cobalt
Blue → White
Beads
Custom sizes are routine. If none of the standard weights suit your enclosure, tell us the dimensions and we will quote an odd size, a different pouch material, or printed pouches to your artwork.
Available on request with your order. Tell us what your market or auditor requires before you specify the product.
Send us your enclosure size, quantity and destination. We will confirm the right grade, pack size and lead time — and tell you if a different product would serve you better.
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Changes colour when spent — no guesswork on replacement
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Orange-to-green indicating gel for applications that need a visual end-point but cannot accept a cobalt-based indicator.
Indicating performance without cobalt chloride
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Reads the actual humidity inside the pack, at a glance
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Regenerable in service — heat for two hours and refit
Talk to our experts
Send us the product, the enclosure, the route and the storage period. You will get a desiccant type, a dose and a format back — not just a price list.