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303_S, 312_R & 315_R Perimeter Gasketing

303_S, 312_R & 315_R Perimeter Gasketing | Image 1
MPN: 303_S, 312_R & 315_R
Finishes: A, B, BDG, C, D, G, PW, SN
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303_S, 312_R & 315_R Perimeter Gasketing | Image 2
303_S, 312_R & 315_R Perimeter Gasketing | Image 3
303_S, 312_R & 315_R Perimeter Gasketing

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  • Product Description
  • Installation and Technical Information
Acoustic Perimeter Gasketing
Rigid jamb weatherstrip shown mounted on openings with 1/16" gaps; however, each weatherstrip can seal gaps up to the depth of its seal. Seal depth provided on each illustration (example: the 303 has a 1/4" seal; therefore, it can seal up to a 1/4" gap)
  • Punched on 6" centres with slotted holes for adjustment
  • Model 303 is available with self-adhesive two-sided tape (TST) and tek screws (3 slotted holes per part) for easy installation. To obtain this option, add “TST” to the end of the part when ordering (example: 303AVTST) Pemko is continually commissioning tests for acoustic assemblies. More profiles may be tested from this category
In order to reduce the transmission of sound, materials are added between the source room and the receiving room. The resulting change in decibel level is the sound transmission loss and is given a Sound Transmission Class (STC) rating. The higher the rating number, the lower the transmission of sound. The STC rating is roughly the decibel reduction a partition can provide. For instance, if a 100 dB noise is reduced to 55 dB, that product roughly has a STC 45 rating.


A (Mill Finish Aluminium) B (Mill Finish [Brass] Bronze) BDG (Bright Dip Gold Anodized) D (Dark Bronze Anodized) G (Gold Anodized) PW (Painted White) SN (Satin Nickel Anodized)


Pemko - Acoustic Products Explained

Pemko acoustic components are available in their appropriate sets. These product combinations are lab tested and have known decibel drops when used with sound-rated doors. Each kit includes gasketing, a door bottom or threshold, and a complete set of installation instructions. Installation instructions show the proper installation location for each component for optimal performance.

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Relcross Ltd (Relcross Door Controls)
Hambleton Avenue
SN10 2RT

t: 01380 729 600