{
  "id": "sika-boom-558-flex",
  "url": "https://furniture-components.com/products/sika-boom-558-flex",
  "name": "Sika Boom®-558 Flex",
  "manufacturer": "sika",
  "category": "adhesives",
  "summary": "Flexible PU expansion foam for sealing joints around window and door frames.",
  "description": "A flexible polyurethane foam designed specifically for sealing joints around window and door frames. It features low post-expansion and low curing pressure, allowing it to withstand large movements in joints while providing excellent thermal and acoustic insulation.",
  "params": {
    "type": "PU foam",
    "property": "flexible",
    "application": "gap-filling",
    "expansion": "low post-expansion"
  },
  "compatibility": [],
  "resources": [],
  "sources": [
    {
      "url": "https://www.sika.com/en/construction/construction-foams.html",
      "last_verified_at": "2026-06-23"
    }
  ],
  "updated": "2026-06-23"
}