Sylomer® SR 850
Sylomer SR 850 is a mixed-cell polyurethane vibration isolation material from Getzner Werkstoffe, coloured turquoise. It handles the highest static loads in the standard Sylomer range, up to 0.85 N/mm2, and is selected for heavy industrial plant, large compressors, and heavily loaded structural isolation where other grades would over-compress or under-isolate.
Specifications
- Material: Mixed cellular polyurethane
- Colour: Turquoise
- Static load range: Up to 0.85 N/mm2 (approx. 10% deflection)
- Operating load range (static plus dynamic): Up to 1.3 N/mm2 (approx. 20% deflection)
- Short-term load peaks: Up to 6 N/mm2
- Mechanical loss factor: 0.11 (DIN 53513)
- Rebound elasticity: 60% (EN ISO 8307)
- Compression hardness: 0.86 N/mm2 at 10% deformation (EN ISO 3386-1)
- Static shear modulus: 0.8 N/mm2 at 0.85 N/mm2 load (DIN ISO 1827)
- Dynamic shear modulus: 1.4 N/mm2 at 0.85 N/mm2 load, 10 Hz (DIN ISO 1827)
- Compression set: Less than 5% at 25% deformation, 23 degrees C, 72 h (EN ISO 1856)
- Operating temperature: -30 to 70 degrees C
- Flammability: Class E (EN ISO 11925-2 / EN 13501-1)
- Standard stock dimensions: 12.5 mm and 25 mm thickness; rolls 1.5 m wide by 5.0 m long
Applications
Sylomer SR 850 is used under heavy rotating or reciprocating machinery, large HVAC plant, industrial compressors, and in heavily loaded floating floor or rail isolation systems where static pressures approach 0.85 N/mm2. Its high shear moduli and high load capacity suit applications that exceed the range of lighter Sylomer grades. Available as rolls, stripes, and custom moulded or stamped parts.
Standards and compliance
Flammability rated Class E to EN ISO 11925-2 and EN 13501-1. Material properties tested to DIN 53513, EN ISO 8307, EN ISO 3386-1, EN ISO 1856, DIN ISO 1827, EN ISO 527-3/5/100, DIN IEC 60093, and DIN EN 12664.
Frequently asked questions
What is the static load rating of Sylomer SR 850?
The static load range is up to 0.85 N/mm2 with approximately 10% deflection. The operating load range, including dynamic loads, extends to 1.3 N/mm2, and short-term peaks are tolerated up to 6 N/mm2.
How does SR 850 differ from SR 450?
SR 850 carries nearly double the static load per unit area of SR 450 (0.85 versus 0.45 N/mm2) and has higher shear moduli (static 0.8 versus 0.58 N/mm2, dynamic 1.4 versus 1.0 N/mm2). It is the appropriate choice when SR 450 would be overloaded.
What formats is SR 850 available in?
Standard stock comes in 12.5 mm and 25 mm thicknesses as rolls 1.5 m wide by 5.0 m long or stripes up to 1.5 m wide. Custom thicknesses, stamped pads, and moulded parts are available on request.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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FAQs
What is your return policy?
All refunds and returns are determined by the manufacturer's terms of sale. Change-of-mind refunds are not accepted, but all valid warranty claims will be managed by AKA Acoustics in compliance with consumer law.
How long will it take to receive my order?
Freight lead times will be provided upon order confirmation. Standard items typically ship within 4–6 weeks, while custom orders may take 6–12 weeks.
Is my payment information secure?
Yes, all payments are securely processed through Stripe and are protected under their Terms of Service. AKA Acoustics do not store any payment information ourselves.
How are freight costs calculated?
Freight costs are determined at the time of quotation to ensure accurate pricing based on your specific order. For any questions, please email sales@akaacoustics.com
How can I contact support?
For account inquiries, email accounts@akaacoustics.com. For order support, email sales@akaacoustics.com.