How to Achieve Total Protection with Desiccant Salts and Laminated Barrier Films

Humidity is one of the main enemies of industrial preservation. During transport and storage, delicate products such as electronic components, optical devices, mechanical equipment, or pharmaceutical materials can deteriorate due to the presence of water vapor. To protect goods from mold, corrosion, oxidation, and chemical-physical alterations, a combined strategy must be adopted: the use of desiccant salts combined with a high-performance laminated barrier film.

This solution is among the most effective for ensuring total and continuous protection, especially in the most demanding industrial contexts.

What are Desiccant Salts?

Desiccant salts are highly hygroscopic substances, capable of absorbing and retaining large quantities of moisture present in the air. Among the most used are:

• Silica gel (white or orange)

• Activated clay

• Molecular sieves

Placed inside technical bags or microbags, these salts act through chemical or physical absorption, capturing moisture inside sealed packaging.

What is a Laminated Barrier Film?

A laminated barrier film is a technical multilayer film composed of plastic and metallic materials (e.g., PET/ALU/PE or PE/EVOH/PE), designed to prevent the passage of air, water vapor, and contaminants.

It is used to create barrier pouches, vacuum bags, heat-sealable packaging, or technical bags for industrial packaging. The main features of a laminated barrier film include:

• Low moisture permeability (MVTR)

• Mechanical resistance and sealability

• Protection from light, oxygen, and contaminants

• Flexibility for custom packaging

The effectiveness of the packaging depends directly on the barrier's performance: the lower the water vapor transmission rate, the longer-lasting the protection.

Why Combine Them?

The combination of desiccant salts and barrier films represents a highly reliable solution because it isolates the internal environment while simultaneously removing residual moisture.

• The laminated film blocks the passage of external moisture.

• The desiccant bags absorb the moisture present inside the packaging.

• The synergy between the two elements ensures stable and dry conditions throughout the entire logistical cycle.

This system is crucial in sectors such as:

• Aerospace and defense

• Electronics and semiconductors

• Medical and pharmaceutical

• Optical precision and scientific instruments

Silital Solutions

Silital offers a complete range of desiccant salts in different weights, substrates, and packaging materials (Tyvek®, non-woven fabric, PE paper), and pairs them with high-performance barrier films available in rolls, sheets, or custom-made bags.

• Availability of certified technical salts

• Standard or customized solutions with the client's logo

• Possibility to integrate humidity indicators inside

• Compliance with MIL-D-3464E, DIN, AFNOR, NF HCO-321, and V55473 standards

Additionally, Silital provides personalized technical consulting to correctly size the amount of desiccants and select the most suitable barrier based on the contents, duration, and destination environment.

Protecting your products from moisture and condensation is a strategic investment. The combination of desiccant salts and a laminated barrier film allows you to achieve total impermeability and a stable microclimate, reducing the risks of deterioration and the costs of returns or replacements.

Silital is the ideal partner for companies looking to rely on custom-made, high-performance, and certified technical solutions. Contact the team to receive a free consultation and build the perfect barrier against humidity.

SCOPRI I NOSTRI PRODOTTI