{"id":2444,"date":"2016-10-28T00:00:09","date_gmt":"2016-10-28T00:00:09","guid":{"rendered":"https:\/\/permabond.com\/advances-light-curing-light-curing-adhesives\/"},"modified":"2025-12-31T19:07:56","modified_gmt":"2025-12-31T19:07:56","slug":"advances-light-curing-light-curing-adhesives","status":"publish","type":"post","link":"https:\/\/permabond.com\/de\/advances-light-curing-light-curing-adhesives\/","title":{"rendered":"Advances in light curing and light curing adhesives"},"content":{"rendered":"

As adhesive manufacturers, we rely on our team of experienced chemists to continue to formulate state-of-the-art light curing products to satisfy our customers\u2019 appetite for innovative materials which reduce manufacturing costs and increase product quality.\u00a0 The Permabond motto is \u201cOur Science \u2026 Your Success\u201d. \u00a0We formulate \u2013 our customers succeed.<\/p>\n

When it comes to UV light curable adhesives, our chemists continue to push the technology to its limits.<\/p>\n

Following are a few of our recent successes.<\/h4>\n

UV6160<\/h5>\n

Optical Clarity PERMABOND\u00ae UV6160<\/a> is a single-part, fast-setting adhesive which cures rapidly on exposure to UV light.\u00a0 UV6160 has been specifically formulated to provide excellent optical clarity and enhanced transparency \u2013even when used in thick layers – \u00a0in compression or a heavily loaded joint.<\/p>\n

UV6231<\/h5>\n

Water Resistant Adhesive PERMABOND\u00ae UV6231<\/a> is a single-part, fast curing, UV curable adhesive. Its excellent optical clarity and resistance to yellowing make it ideal for bonding glass and crystal for a high-quality finish. It has excellent resistance to moisture and humidity making it ideal for bathroom -type applications (such as bathroom scales, shower doors etc.) and also outdoor applications where good resistance to weathering is essential.<\/p>\n

UV681<\/h5>\n

Tack Free Coating PERMABOND\u00ae UV681<\/a> is ideal for coating electronics (such as conformal coating) to protect against environmental and vibrational damage. Amongst various other applications, the optically clear \/ tack free formulation also makes PERMABOND\u00ae UV681<\/a> particularly suitable for coating smart card microchips. Its low viscosity ensures an even, bubble-free coating, and high-temperature resistance allows it to resist wave-soldering.<\/p>\n

UV683<\/h5>\n

Tack-Free PERMABOND\u00ae UV683<\/a> is ideal for coating and doming applications. The optically clear \/ tack free formulation also makes this product particularly suitable for coating smartcard microchips, as well as various other applications. Its viscosity makes PERMABOND\u00ae UV683<\/a> suitable for encapsulation of electronic components, and its high-temperature resistance allows it to resist wave soldering.<\/p>\n

Developments in Light Curing Equipment<\/h2>\n

Although I don\u2019t expect we\u2019ll change our motto from \u201cOur Science \u2026 Your Success\u201d to \u201cTheir Science \u2026 Your Success\u201d, our customers have obtained some recent successes with a little help from our friends Lamp Manufacturers! \u00a0The advances lamp manufacturers have made in UV curing equipment, and especially UV-LED curing technology, definitely deserves some mention.\u00a0 In fact, there are a variety of options for creating UV light, including LED or Arc and Microwave. LEDs give off UV light through electroluminescense when voltage is applied to each LED chip.\u00a0 Many LEDs can be assembled into various configurations to produce the size and shape of the light.\u00a0 Conventional UV light is created by mercury with energy (either with high voltage electric current or microwave) to excite them \u2013 as they return to their ground state they give off UV light.<\/p>\n

LED lamps<\/h3>\n

UV light produced with LED lamps gives very consistent output over a long bulb life.\u00a0 The spectral output is more narrow than light produced with mercury vapor but is in a range that is safer to use (in fact, much of it is long enough wavelength to be considered visible light).\u00a0 This narrow wavelength is safer but ensures the UV adhesive or ink formulation will cure appropriately in the defined wavelength \u2013 adhesives designed to cure with mercury vapor lamps may require higher intensity or longer cure times.<\/p>\n

Mercury vapor \u2013 Mercury vapor can produce UV light over a broad spectrum, including shorter wavelengths which can be dangerous if you aren\u2019t properly protected.<\/p>\n

Arc & Microwave<\/h3>\n

Arc lamps \u2013 Arc lamps are popular in part because their simplicity allows for a variety of types, sizes, and styles, from small, focused lamps to very long lamps used for curing UV inks on packaging and UV coatings on wood.\u00a0 They are generally mounted in an enclosure with a blower to provide cooling, and a reflector.\u00a0 Reflectors can be made of various materials, but polished aluminum is often used.<\/p>\n

Although they are highly versatile, the bulb life of arc lamps should be considered.\u00a0 For every hour the bulb is lit, the intensity of light emitted reduces.\u00a0 That doesn\u2019t mean you should shut the lamp down in between each use, as each time the lamp is turned on the intensity reduces (generally equivalent of one hour of run time) and the lamp must be cooled prior to turning it back on \u2013 the amount of time depends on the configuration but it can be anywhere from a few minutes to a half hour.<\/p>\n

Microwave Lamps – Microwave lamps are not as versatile in size as Arc lamps, but lamps can be positioned in a line to achieve the length or width required.\u00a0 They don\u2019t degrade as quickly as arc lamps but do produce heat.<\/p>\n

D type bulb 350 \u2013 400 nm common for curing UV adhesives<\/p>\n

H type bulb = 220 \u2013 320 nm with a spike at 365 nm.\u00a0 Ideal for achieving tack free, dry coatings<\/p>\n

V type bulb = 400 \u2013 450 nm Ideal for visible light cure adhesives<\/p>\n

Sunshine<\/h3>\n

A good sunny day will provide about 3mW\/cm2, <\/sup>which is quite low intensity and will require longer cure times.\u00a0 However, it is free, and providing a rainy day won\u2019t interrupt your manufacturing schedule greatly, why not.\u00a0 Qualifying the cure time based on the weather is not appropriate for all applications but many artisans are using this natural UV curing technique.<\/p>\n\n\n\n\n\n\n\n
Source<\/td>\nAdvantages<\/td>\nDisadvantages<\/td>\n<\/tr>\n
Sunshine<\/td>\nIt\u2019s free<\/td>\nVariable low intensity<\/p>\n

Broad Spectrum<\/td>\n<\/tr>\n

LED UV light<\/td>\nLong bulb life<\/p>\n

Instant on \/ off<\/p>\n

No hazardous mercury disposal<\/p>\n

No need to vent ozone gas<\/td>\n

Higher initial cost<\/p>\n

Narrow spectrum (+\/- 10nm)<\/td>\n<\/tr>\n

Mercury Vapor – Arc<\/td>\nBroad spectrum<\/p>\n

Versatile<\/td>\n

Intensity decreases with time Bulb life of 1000 to 2000 hours<\/p>\n

Disposal of mercury<\/td>\n<\/tr>\n

Mercury Vapor – Microwave<\/td>\nConsistent intensity<\/td>\nLimit to 10\u201d without additional units<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Cost<\/h2>\n

UV curing systems can range from a few dollars to many thousands of dollars.\u00a0 If you are implementing a high speed production line, there are a several respectable equipment companies to work with.\u00a0 Contact Permabond for a referral<\/a>.\u00a0 If you are looking for a low-cost solution, here are some options.<\/a><\/p>\n

Getting the most out of which ever lamp you choose<\/h2>\n

UV light drops off inversely with the square of the distance (really fast)!\u00a0 Some light sources have the highest intensity closest to the bulb itself; however, others have a focused beam.\u00a0 For example, the highest intensity may be at 2.1\u201d from the bulb, in which case moving the bond area closer to the lamp than 2.1\u201d would cause the same quick decline in intensity.<\/p>\n

Use a jig or fixture to maintain a consistent distance between the lamp and the bond area.<\/p>\n

When using a lamp that loses intensity over time it is important to monitor the intensity with a radiometer to ensure the bulb is still adequate to use for the application.\u00a0 It isn\u2019t advisable to simply monitor the number of hours on the bulb, as that doesn\u2019t include intensity loss experienced from firing the bulb.\u00a0 To maximize the life of the bulb, cure schedules can include an extended cure time at lower intensity.<\/p>\n

Tips for Choosing the Best Light and Light Curing Schedule<\/h5>\n

The basic rule of thumb is \u201cthe higher the intensity, the faster the cure.\u201d If you need a large depth of cure, lower intensity for longer time is best. On the other hand, for coating applications where the UV adhesive or coating is in contact with air, the higher intensity will create a tack-free surface.<\/p>\n

Technical data sheets provide some information on the adhesive\u2019s general energy requirements.\u00a0 Conventional UV cure adhesives only cure while illuminated. That is, it will not continue to cure without light.\u00a0 Full cure is when the adhesive has transformed from a liquid to a solid and when further UV light exposure does not improve the adhesives properties. Note dual cure UV adhesives can continue to cure by another mechanism such as anaerobic, moisture, and heat.<\/p>\n

To test for the lowest intensity allowable to achieve full cure, increase the distance between the bond area and the lamp to reduce the intensity.\u00a0 Keep the time consistent and find the point at which the bond strength decreases. \u00a0It is perfectly acceptable to add a safety margin.<\/p>\n

Contact<\/a> Permabond technical support for information related to your application.<\/p>\n

\"coolcurechambersellsheet\"<\/p>\n

Download Cool Cure Chamber information – coolcurechambersellsheet<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

As adhesive manufacturers, we rely on our team of experienced chemists to continue to formulate state-of-the-art light curing products to satisfy our customers\u2019 appetite for innovative materials which reduce manufacturing costs and increase product quality.\u00a0 The Permabond motto is \u201cOur Science \u2026 Your Success\u201d. \u00a0We formulate \u2013 our customers succeed. When it comes to UV […]<\/p>\n","protected":false},"author":6,"featured_media":2445,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[614,621],"tags":[85,322,323,451],"class_list":["post-2444","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-adhesive-types-2","category-uv-curable-adhesives","tag-uv-adhesives","tag-uv-cure","tag-uv-curing","tag-uv-light"],"acf":[],"yoast_head":"\nAdvances in light curing and light curing adhesives - Permabond<\/title>\n<meta name=\"description\" content=\"Choosing the best light curing adhesive and cure system for your application. 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Compare various adhesives and UV light curing systems\" \/>\n<meta property=\"og:url\" content=\"https:\/\/permabond.com\/de\/advances-light-curing-light-curing-adhesives\/\" \/>\n<meta property=\"og:site_name\" content=\"Permabond\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/permabondEA\/\" \/>\n<meta property=\"article:published_time\" content=\"2016-10-28T00:00:09+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-12-31T19:07:56+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/permabond.local\/wp-content\/uploads\/2022\/11\/CoolCureChamberSellSheet.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"865\" \/>\n\t<meta property=\"og:image:height\" content=\"781\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Rebecca Wilmot\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@PermabondEA\" \/>\n<meta name=\"twitter:site\" content=\"@PermabondEA\" \/>\n<meta name=\"twitter:label1\" content=\"Verfasst von\" \/>\n\t<meta name=\"twitter:data1\" content=\"Rebecca Wilmot\" \/>\n\t<meta name=\"twitter:label2\" content=\"Gesch\u00e4tzte Lesezeit\" \/>\n\t<meta name=\"twitter:data2\" content=\"7\u00a0Minuten\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Advances in light curing and light curing adhesives - Permabond","description":"Choosing the best light curing adhesive and cure system for your application. 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