Avoid using WD-40 on O-rings, as its petroleum-based formula can soften or swell most elastomers—nitrile (NBR) O-rings may swell >10% after 24 hours, reducing sealing efficiency. Instead, use silicone or fluoropolymer-based lubricants (compatible with NBR/FKM) to maintain flexibility; clean with mild soap if needed. What Are O-Rings Made Of? O-rings might look like simple loops […]
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O-rings are circular elastomeric seals (e.g., nitrile, Viton) with a round cross-section, ideal for static/dynamic applications up to 3,000 psi, sealing via radial compression between mating surfaces. U-seals, U-shaped with a lip, handle higher pressures (5,000+ psi) in reciprocating motion (e.g., hydraulics), resisting extrusion better due to their profile, reducing wear in high-cycle systems. Basic
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Dolph Microwave warrants our products to be free from defective material and workmanship for a period of one year from the date of delivery. All defective parts will be replaced and repair work required by normal use will be performed, without charge, within this one year period. This warranty shall be exclusive and in lieu of all other warranties expressed or implied.
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