Indicating Silica Gel is used to protect moisture-sensitive items from damage caused by humidity. It helps prevent rust, corrosion, mould, mildew, fogging, and spoilage in electronics, tools, instruments, food packaging (orange only), and storage containers.
Indicating Silica Gel adsorbs (not absorbs) water vapour from the air. This means it traps moisture on its surface without swelling or becoming wet. It can adsorb up to 30% of its own weight in water vapour.
Orange Indicating Silica Gel is food-safe and turns green when saturated. Blue Indicating Silica Gel contains cobalt chloride and is not food-safe. It changes from blue to pink as it absorbs moisture.
Indicating Silica Gel changes colour to show when it is spent. Orange turns green, and blue turns pink. This makes it easy to see when the silica gel needs to be replaced or reactivated.
Yes. Indicating Silica Gel can be reactivated by heating it in a fan-forced oven at 110°C for 5 hours. The beads will return to their original colour. This process can be repeated up to 3 times before effectiveness declines.
If the silica gel has been used for standard moisture absorption (dehydration purposes), it can be safely disposed of in your regular household rubbish. However, if the beads have been used for gas separation applications, they may have adsorbed gases other than moisture due to their small pore size (approximately 20 angstroms). In this case, ... Read more
Yes. Indicating Silica Gel is non-toxic, non-flammable, non-corrosive, and odourless. Only orange silica gel is food-safe. Blue silica gel should not be used with food.
Store in a sealed container or airtight packaging to prevent premature moisture adsorption. Properly stored, Indicating Silica Gel has an almost indefinite shelf life.
Indicating Silica Gel is commonly used for protecting electronics, cameras, computers, musical instruments, preservation packaging, tools, and other humidity-sensitive products.