Which molecular sieve size is best for water absorption? Are any of the molecular sieves able to be reactivated in a typical house oven?

13X molecular sieve is best for liquid water absorption. All types of molecular sieve have to be baked at 550℃/1022℉ to be fully reactivated. If you use a house oven, the molecular sieve can be reactivated at some level, but not fully reactivated.

Are these 4A beads pre-activated or do I have to bake them before use?

They come activated! They work great!

Wisesorb 7 5 Lbs 4a Molecular Sieve Premium Quality Desiccant

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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€ 187.10

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In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Stay dry, stay ahead — premium moisture control for the savvy pro.

BULK CONTROL - 7.5 lbs in an ergonomic dual-handle container for effortless pouring and precise use.
RAPID MOISTURE LOCK - Absorbs over 17% of its weight in water vapor at room temp for unbeatable dryness.
REUSABLE POWERHOUSE - Easily reactivated by baking at 550°C, extending lifespan and saving costs.
EXTREME TEMP RESILIENCE - Performs flawlessly even in freezing conditions down to -20°C, perfect for any environment.
VERSATILE STORAGE SOLUTION - Ideal for protecting sensitive items in custom mesh bags, jars, or storage bins—never worry about moisture again.

The Wisesorb 7.5 LBS 4A Molecular Sieve is a premium-grade desiccant designed for rapid and efficient moisture absorption. With granules sized 1.5-2.5mm, it captures molecules under 0.4nm, absorbing over 17% of its weight in water vapor at 25°C and 20% RH. It operates effectively in extreme cold (-20°C) and can be reactivated by high-temperature baking (550°C), making it a sustainable, bulk moisture control solution ideal for professional and industrial use.

Specifications

ASIN	B07YN576YJ
Best Sellers Rank	#78,372 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #150 in Desiccants
Date First Available	August 8, 2019
Item Weight	8.09 pounds
Item model number	1
Manufacturer	Wisesorbent Technology LLC
Product Dimensions	9.06 x 3.74 x 11.61 inches

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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€ 187.10

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Slovakia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Wisesorb 7.5 LBS 4A Molecular Sieve, Premium Quality Desiccant Bulk Material

Description

Specifications

Common Questions