Pro : direct purchase by the roll · Business : custom volume quote (calculator, ROI)



AirSponge AS-B roll — pre-cut every 20 mm
200 stickers · pre-cut every 20 mm · 50 mm × 2 m
So Sponge
list price, excl. VAT · 50×20 PA · volume discounts from 2,500 pcs
Variant : 200 stickers · 2 m roll
🛒 Online checkout is coming soon. “Pre-order” sends your request to our team — reply within 24 h.
Pre-order — lead times confirmed after order validation · pickup at our Villeurbanne workshop
~52 to 200 enclosures covered (avg. Fibox mix < 10 L)
| Brand | So Sponge |
| Reference | ASB-50x20-EBF-PA-PD |
| Material | Mesoporous SRD alumina (Self-Regenerating Desiccant) |
| Sticker format | 50 × 20 mm (10 cm²) |
| Packaging | Roll 50 mm wide, pre-cut every 20 mm |
| Useful capacity | 8× vs silica gel in the 60–90 % RH zone |
| Activation threshold | ~60 % RH |
| Regeneration | Spontaneous at room temperature · unlimited cycles |
| Energy | 0 W (passive) |
| Temperature range | −20 to +70 °C |
| Lifespan | Unlimited · maintenance-free |
| Compliance | REACH |
| Manufacturing | France |
Need precise sizing or a large volume ? (calculator, ROI, custom quote).
Passive anti-humidity and anti-condensation protection for sealed IP65+ enclosures of small and medium volume. Outdoor IoT sensors, surveillance cameras, weather and agricultural sensors, industrial equipment and measurement instruments, machine vision, outdoor robotics, urban sensors, embedded electronics. Compatible with your pressure-compensating breather vents (Gore Vent). Zero energy, zero maintenance, unlimited lifespan.
The self-regenerating anti-condensation sticker for IP65+ enclosures. Calculate your needs and receive a personalized price offer within 24h.
The problem
Day/night cycles create thermal breathing. Humidity accumulates until condensation forms on your components.
Moisture accumulates cycle after cycle.
Step 1
Enter the enclosure volume. Expert mode lets you refine the thermal cycle.
Initial RH default 65 % — typical European industrial workshop ambient. Adjust if your assembly environment differs significantly.
⚠️ Physical limit reached: ramp clamped to 1 °C/min. Beyond this value the model is outside its validity range.
Default: 0.5 °C/min — conservative for a stressed outdoor cycle (e.g. thunderstorm, thermal shock). Also enterable in min/cycle. Physical max: 1 °C/min. The faster the cooling, the more SRD surface you need.
Step 2
Final step
You will receive a detailed price offer by email within 24 business hours.
You will receive your personalized quote within 24h at .
Further reading