樂泰 406

樂泰 406

應用方法：分配系統；手動
Applications:Bonding elastomerics; Bonding plastic
顏色：透明
固化類型：濕氣固化
固定時間，Steel:30.0 秒。.
間隙填充:0.12 mm
Key characteristics:Fixture: fast fixture; Viscosity: low viscosity
Operating temperature:-40.0 °C – 120.0 °C (40.0 °F – 250.0 °F)
物理形態：液體
Recommended for use with:Elastomer; Plastic; Rubber
Resin: Viscosity:20.0 mPa·s (cP)
Shear strength, Mild Steel (grit blasted):15.5 N/mm² (2250.0 psi)

概述

樂泰 406 是 clear, very low-viscosity cyanoacrylate instant adhesive designed especially for fast bonding of plastics and elastomers. It flows almost like water, quickly wicking into 緊密接合 and fine gaps, giving strong bonds in seconds on:

  • Many 工程塑料

  • Rubbers and elastomers

  • Metals and other common substrates (especially when used with a suitable primer)

In production, Loctite 406 is often paired with a 聚烯烴底漆 for bonding low-surface-energy plastics like PP, PE and PTFE, which are otherwise hard to glue.

主要功能與優勢

  • Specialized for plastics & rubber
    Formulated to give strong, reliable bonds on a wide range of plastics and elastomers, where general-purpose instant adhesives can be inconsistent.

  • Very low viscosity for wicking
    Almost water-thin, so it can penetrate tight joints, hairline cracks and porous edges, 適用於 毛細接合 and pre-assembled parts.

  • Fast fixture in seconds
    達到 handling strength very quickly, helping shorten assembly cycles and enabling fast MRO repairs.

  • 清晰、幾乎看不見的結合線
    治癒 colorless, transparent joint, suitable for visible plastic housings, clear components and small precision parts.

  • 單組分、室溫固化
    No mixing, no ovens: just 套用、組裝和固定. Cures with ambient moisture.

  • Compatible with primers for difficult plastics
    When used with primers such as a polyolefin surface primer, Loctite 406 can bond PP, PE, PTFE and other low-energy plastics.

典型應用

Loctite 406 is widely used in electronics, consumer devices, automotive, medical equipment (non-invasive parts) and general industrial assembly:

  • Plastic part bonding

    • 加入 ABS, PVC, PC and other engineering plastics in housings, covers and clips

    • 保護 small plastic guides, spacers, nameplates and labels

  • Rubber & elastomer bonding

    • 黏合 O-rings, seals, grommets and rubber pads to plastic or metal

    • 連接 soft feet, bumpers and grips to tools and devices

  • Fine, close-fitting assemblies

    • 滲入 tight plastic-to-plastic or plastic-to-metal joints

    • Bonding small components where access is limited and only a tiny amount of adhesive is needed

  • MRO 和快速維修

    • 維修 cracked plastic housings and broken clips

    • Re-attaching rubber trims, seals and small decorative parts

How to Use Loctite 406

Always follow the latest Henkel Technical Data Sheet (TDS) and your own process instructions. The steps below are a practical summary.

步驟 1 – 表面處理

  1. 確保所有表面都 乾淨、乾燥、無油、無灰塵、無脫模劑.

  2. Clean plastics, rubbers and metals with a suitable 溶劑或工業清潔劑; allow to dry fully.

  3. For tough plastics (PP, PE, PTFE and some TPEs), apply a 聚烯烴底漆, let it flash off, then use Loctite 406.

步驟 2 - 使用黏著劑

  1. 套用一個 少量 of Loctite 406 to 一名 的接合面。.

  2. Because the adhesive is very low viscosity, use minimal drops or a fine bead to avoid flooding the joint.

  3. For pre-assembled or tight joints, place the adhesive at the 接合邊 and let it wick in by capillary action.

步驟 3 - 組裝

  1. Immediately bring parts together (if not already assembled), align correctly and apply 堅固、均勻的壓力.

  2. 保持為 數秒 until the joint reaches handling strength; exact fixture time depends on material, gap, humidity and temperature.

  3. Avoid sliding or peeling the joint during the first moments of cure.

步驟 4 - 完全固化及修飾

  1. Although fixture happens quickly, allow up to 室溫 24 小時 為 full cure and maximum strength.

  2. 擦去任何 新鮮榨汁 immediately with a cloth and appropriate cleaner.

  3. 完全固化後，多餘的黏著劑最好以下列方式清除 機械方式 (scraping, careful cutting) or a cyanoacrylate debonder.

安全與操作

Loctite 406 is a cyanoacrylate instant adhesive and should be handled with care:

  • 可在幾秒鐘內粘合皮膚和眼睛 – avoid contact; do not forcibly pull apart bonded skin.

  • 用於 通風良好的區域; vapors can irritate eyes and respiratory system.

  • 穿著 安全眼鏡和合適的防化手套 (often nitrile) during regular use.

  • 儲存於 陰涼乾燥處, tightly closed, away from heat and direct sunlight to maintain shelf life.

  • 防止未固化的膠黏劑進入 排水渠或水道; ；根據當地規定處理廢棄物。.

Always review the current 安全資料表 (SDS) 以及 技術資料表 (TDS) 生產使用前。.

常見問題

Q1: What is Loctite 406 mainly used for?
Loctite 406 is mainly used for fast, high-strength bonding of plastics and elastomers, 尤其是 密合零件 where a very low-viscosity adhesive can wick into the joint.

Q2: How is Loctite 406 different from general-purpose instant adhesives?
Compared with general-purpose cyanoacrylates, Loctite 406 is optimized for plastics and rubbers and has very low viscosity, giving better 毛細作用 and more consistent results on these substrates.

Q3: 哪種材料的黏著效果最好？
它能結合 many engineering plastics (ABS, PVC, PC, etc.), rubber and elastomers, and metals. .使用適當的底漆，它也可以黏合 polyolefins like PP and PE 以及 PTFE, which are normally difficult to glue.

Q4: How fast does Loctite 406 cure?
On active materials and tight joints, Loctite 406 usually reaches 幾秒鐘的處理強度. Full strength and maximum chemical resistance develop over several hours, typically up to 24 hours.

Q5: Can Loctite 406 fill large gaps?
No. It is designed for very small gaps and close-fitting parts. For wider gaps or noticeably uneven joints, a higher-viscosity CA, structural acrylic or epoxy 可能更適合。.

Q6：固化後的黏合劑是否具有彈性？
Loctite 406 cures to a 硬質熱塑膠, typical of cyanoacrylates. It works well on small joints, including rubber and plastic parts, but it is not a soft, rubbery adhesive.

Q7: Can parts bonded with Loctite 406 be disassembled?
氰基丙烯酸酯鍵通常 擬永久. .拆卸通常需要 機械力道和/或拆解, and often damages at least one part. Design bonded joints assuming 有限返工.

Q8: Is Loctite 406 suitable for medical or food-contact applications?
任何使用在 受規管應用 (medical, food, potable water, etc.) must be checked against the relevant standards and confirmed with 漢高和您的監管團隊. Loctite 406 is not automatically approved for those uses.

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