Contact between elastic joints and bituminous substrates should be avoided in order to prevent discolouration and incompatibilities, e.g. by means of measures such as sealing with OTTOSEAL® A 250. Further information on sealing bituminous substrates can be found in the technical data sheet for OTTOSEAL® A 250.
We recommend using OTTOSEAL® S 18 for swimming pool liners (PVC) or, for natural stone applications, OTTOSEAL® S 70 or S 140 which are compatible with natural stone. The swimming pool liner must be treated with OTTO Primer 1217 beforehand.
We recommend using OTTOSEAL® S 18 or, for natural stone applications, the natural stone-compatible products OTTOSEAL® S 70 in glossy colours or OTTOSEAL® S 140. The adhesive surfaces must be pre-treated with OTTO Primer. For correct pre-treatment, refer to the primer table.
Please also refer to the technical data sheet.
The adhesive surfaces of the sanitary acrylic must be pre-treated with Cleanprimer 1101 to achieve optimum adhesion.
Potential maintenance joints include, for example, joints that are exposed to strong chemical and/or physical influences or constant wet conditions and/or are regularly treated with high-pressure cleaners.
These include joints in sanitary areas, commercial kitchens, swimming pools, industrial areas and heavily used floor joints.
An elastic (silicone) joint in private and professional/public sanitary areas should be checked at regular intervals to prevent consequential damage.
Any damage to the (silicone) joint on the sealant used must be repaired immediately to prevent consequential damage to the building and/or the building fabric. Professional replacement is required for repair.
Information on professional joint renovation can be found in the Perfect mould prevention & remediation.
Silicone sealants from OTTO do not show any discolouration without external influences. External influences that can lead to discolouration include
According to the state of the art, as set out in IVD data sheet no. 12, among others, movement-compensating sealants are not painted over completely for technical reasons. If this is nevertheless required or necessary in exceptional cases, acrylic, polyurethane and hybrid sealants can be painted over/varnished. The compatibility between the coating and the product must be checked by the user/processor before application. If, after successful compatibility testing, the product is painted over the entire surface in exceptional cases, the coating must also be able to follow the elastic movement of the sealant. Otherwise, cracks may form in the paint or visual impairments may occur.
Paint-compatible sealants are sealants that can be used to seal components coated with paint without causing any harmful interactions between the sealant and the paint and adjacent building materials. This also applies to subsequent painting of the components, whereby the paint must be limited to 1 mm on the sealant at the edge of the joint. For example, the paint-compatible sealant (e.g. OTTOSEAL® S 110 or OTTOSEAL® S 120)
can be subsequently coated with paint on the joint surface up to 1 mm from the edge of the frame and the glazing bead when sealing a glass rebate on a wooden window.
Sealants that can also be coated over the entire surface can be painted over. The information in the applicable technical data sheet, in particular regarding suitable paint systems, must be observed.
Silicone sealants react with air humidity and cross-link from the outside and inside. Complete cross-linking is achieved after approximately 5 to 8 days (+ 23 °C / 50 % relative humidity) at room temperature with a joint depth (sealant thickness) of approximately 6-7 mm. Lower temperatures and/or humidity prolong the curing time.
Showers, washbasins, bathtubs, etc., which have been sealed with OTTOSEAL® S 100 or OTTOSEAL® S 105, for example, can be used again after approximately 1 to 2 days.
OTTOSEAL® S 100 and OTTOSEAL® S 105 are immediately waterproof, but should not be subjected to mechanical stress (stretching and compressing the joint) through cleaning or heavy loads for at least 1 to 2 days during curing.
Primers are bonding agents that improve the adhesion of sealants to porous or problematic substrates. The primer leaves a film or bonding residue on the substrate, allowing the sealant to adhere better.
Substrates must be dry, clean and free of dirt before priming. Apply primer sparingly to non-absorbent substrates and generously to absorbent substrates. Refer to the technical data sheet and priming table!
Transportation and storage of anhydrous adhesives and sealants based on silicon, hybrid and polyurethane are possible for a limited period. Permanent storage at temperatures below 0°C is not recommended, particularly because processing of "cold" sealants leads to longer curing times and most products are of a harder consistency at low temperatures, as is the case when they are taken from cold storage and processed immediately. “Cold” products should be warmed to room temperature prior to processing.
After complete curing these products are permanently resistant to temperatures below 0°C.
During processing care should be taken that there is no ice, dew, condensation water or any other source of dampness on the seal surfaces, as this functions as a release agent and impairs or prevents bonding of the sealant.
Aqueous adhesives and sealants based on acrylic dispersions, as well as OTTOCOLL® A 270 and the aqueous OTTOFLEX products, are not resistant to frost when unprocessed and during the curing phase and should not be stored or processed at a temperature below + 5°C Some acrylic dispersions are resistant for a limited period and can be transported at -10°C for a maximum of 48 hours. In this context the information provided in the latest technical sheets should be referred to. Longer storage or storage/transportation at lower temperatures causes irreversible frost damage to the acrylic sealant (coagulation).
After complete curing most acrylic dispersions are permanently resistant even at temperatures below + 5°C.
For bonding stair treads, we recommend using OTTOCOLL® P 85 or OTTOCOLL® P 340 Rapid or OTTOCOLL® M 500, M 501, M 530 HiSpeed, or M 550 HiTack (stress-equalising, for indoor and outdoor use).
Primers are bonding agents that improve the adhesion of the adhesive to porous or problematic substrates. The primer leaves a film or bonding residue on the substrate, on which the adhesive can build up better adhesion.
Substrates must be dry, clean and free of dirt before priming. Apply primer sparingly to non-absorbent substrates and generously to absorbent substrates. Refer to the technical data sheet an priming table!
Transportation and storage of anhydrous adhesives and sealants based on silicon, hybrid and polyurethane are possible for a limited period. Permanent storage at temperatures below 0°C is not recommended, particularly because processing of "cold" sealants leads to longer curing times and most products are of a harder consistency at low temperatures, as is the case when they are taken from cold storage and processed immediately. “Cold” products should be warmed to room temperature prior to processing.
After complete curing these products are permanently resistant to temperatures below 0°C.
During processing care should be taken that there is no ice, dew, condensation water or any other source of dampness on the seal surfaces, as this functions as a release agent and impairs or prevents bonding of the sealant.
Aqueous adhesives and sealants based on acrylic dispersions, as well as OTTOCOLL® A 270 and the aqueous OTTOFLEX products, are not resistant to frost when unprocessed and during the curing phase and should not be stored or processed at a temperature below + 5°C Some acrylic dispersions are resistant for a limited period and can be transported at -10°C for a maximum of 48 hours. In this context the information provided in the latest technical sheets should be referred to. Longer storage or storage/transportation at lower temperatures causes irreversible frost damage to the acrylic sealant (coagulation).
After complete curing most acrylic dispersions are permanently resistant even at temperatures below + 5°C.
Yes, open the colour recommendations for hard joints and floor coverings.
OTTOSEAL® S 105 is a standard acetate silicone with good processing properties. OTTOSEAL® S 100 OTTOSEAL® S 100 is a premium sanitary silicone characterised by unique, unrivalled processing properties such as excellent smoothness and mouldability. OTTOSEAL® S 100 is also available from stock in a wide range of colours – including matt colours!
OTTO offers the right products for composite waterproofing for all stress categories:
OTTOFLEX® Sealing strip can be used in combination with OTTOCOLL® M 500 in accordance with DIN 18534 for water exposure classes W0-I, W1-I, W2-I and W3-I, as well as in accordance with abP (general building inspection test certificate) for stress classes A and C (regulated) and in accordance with ZDB (Central Association of the German Construction Industry) for stress classes A0 and B0 (not regulated).
complies with water action classes W0-I and W1-I according to DIN 18534 and A0 according to ZDB, as well as W2-I for wall sealing and stress class A according to abP.
OTTOFLEX® sealing slurry can be used in accordance with DIN 18534 for water exposure classes W0-I, W1-I, W2-I and W3-I and in accordance with abP for stress classes A and B. It also complies with stress classes A0 and B0 in accordance with ZDB. Further possible applications are specified in the technical data sheet.
We also offer OTTOFLEX® accessories such as sealing tapes, collars, corners, tub edge sealing tape, sound insulation tape and protective tape.
A detailed description of how to install the composite seal can be found in our The OTTOFLEX System.
For swimming pool liners (PVC), we recommend using OTTOSEAL® S 18 or, for natural stone applications, the natural stone-compatible products OTTOSEAL® S 70 in glossy colours or OTTOSEAL® S 140. The adhesive surfaces of the swimming pool liner must be pre-treated with OTTO Primer 1217.
We recommend using OTTOSEAL® S 18 or, for natural stone applications, the natural stone-compatible products OTTOSEAL® S 70 in glossy colours or OTTOSEAL® S 140.
The adhesive surfaces must be pre-treated with OTTO Primer.
For correct pre-treatment, refer to the primer table.
Also refer to the technical data sheet.
The products OTTOCOLL® P 84, OTTOCOLL® P 85 and OTTOCOLL® P 340 Rapid meet the requirements of DIN EN 204 stress group D4, i.e. weather-resistant bonding of wood-based materials must be protected with a suitable coating.
In the case of woods containing oil or tannic acid, such as teak, larch and oak, adhesion and compatibility must be ensured by carrying out suitable preliminary tests.
Due to their excellent glass adhesion and UV resistance, we recommend using OTTO silicone sealants and adhesives, such as OTTOSEAL® S 7, S 9, S 10, S 110 and S 120, and OTTOCOLL® S 81, S 88, S 610 and S 670. For more information, please refer to the technical data sheets for the respective products.
OTTOSEAL® M 350 is a silicone-free sealant for sealing glass rebates in wooden windows, which meets the requirements of DIN 18545, stress groups A and D, and ISO 11600 G 25 HM. OTTOSEAL® M 350 has low residual tack and is less abrasion-resistant than high-quality glazing sealants such as OTTOSEAL® S 110 or OTTOSEAL® S 120.
The BlueLine cartridge with its associated static mixer has an application speed up to three times higher than the side-by-side cartridge with its associated static mixer.
OTTOCOLL® S 645 is a two-component silicone adhesive for load-bearing bonding. The product is certified according to ETAG 002 and approved according to European Technical Assessment ETA-19/0692. It is suitable for applications in structural glazing as well as for the manufacture of all-glass corners, glass partitions and glass structures requiring approval.
OTTOCOLL® S 645 is available in several colours on request.
We offer a range of 1K and 2K silicone adhesives. OTTOCOLL® S 88 is our 1K silicone adhesive with a very good adhesion spectrum and is ideal for static bonding of windows. Our 2K silicone adhesives OTTOCOLL® S 81 and OTTOCOLL® S 670 impress with their reliable and fast curing, even in high layer thicknesses. Both are available in the easy-to-use BlueLine cartridge, which is characterised by a higher dispensing quantity in a shorter time.
Our products cover all important installation variants. OTTOSEAL® M 360 iis our sprayable sealant for exterior and interior joints. We also offer OTTOPUR PU foams for thermal and sound insulation in connection joints. The range is rounded off by our OTTOTAPE multifunctional sealing tapes and building connection tapes. Further information can be found in our brochure ‘Sealing windows and doors easily and securely’.
Yes, OTTOSEAL® S 100 is suitable for outdoor use and is characterised by its excellent weather, ageing and UV resistance.
In adhesive processes and techniques, open time refers to the permissible period between the start of application of the adhesive and the joining of the parts. This can be influenced by factors such as heat, draughts, highly absorbent substrates and sunlight.
At low temperatures, there is a risk of condensation forming on the substrate as a thin, invisible layer of ice or water. This separating layer prevents the sealants from adhering optimally to the substrate.
Single-component hybrid, PU and silicone products require air humidity for curing, which is virtually non-existent at low temperatures below +5 °C. Aqueous sealants such as dispersion acrylics are sensitive to frost when fresh and must not be used at temperatures below +5 °C.
Matt and matt sanded sealants and textured surfaces: When smoothing matt, matt sanded and textured sealants from OTTO, the following should be noted: The joint should only be smoothed once with a smoothing tool that has been dipped in OTTO smoothing agent. The more often the surface is treated with smoothing agent, the more the matt effect is lost and the joint becomes shinier.
When smoothing matt sanded colours with the appropriate OTTO smoothing agent, it should also be noted that smoothing the joint with your finger is not recommended, as this presses the sand particles into the sealant and they are no longer visible on the surface. For this application, we therefore recommend our OTTO smoothing tools as the perfect complement.
Transport and storage of anhydrous silicone, hybrid and polyurethane-based adhesives and sealants at sub-zero temperatures is possible on a temporary basis. Permanent storage at temperatures below 0 °C is not recommended, particularly because processing ‘cold’ adhesives and sealants results in delayed curing and most products have a firmer processing consistency at cold temperatures when they are removed from cold storage and then processed immediately. ‘Cold’ products should be brought to room temperature before processing. Once fully cured, the processed products are permanently stable even at temperatures below 0 °C.
When processing at cold temperatures, it is essential to ensure that there is no ice, condensation or other moisture on the adhesive surfaces, as this acts as a separating film and can impair or prevent the sealant from adhering.
Aqueous dispersion-based sealants and adhesives and the aqueous OTTOFLEX® products are not frost-resistant in their unprocessed state and during curing and must not be stored or processed at temperatures below +5 °C. Some dispersion acrylic products are resistant to temperatures down to -10 °C for a maximum of 48 hours during transport. The information in the current technical data sheet must be observed. Longer storage or storage/transport at lower temperatures will result in irreversible frost damage to acrylic sealants and adhesives (coagulation).
Once fully cured, dispersion acrylic products are permanently resistant even below + 5 °C.
Yes, all OTTO silicone sealants offer excellent UV and weather resistance.
Once cured, OTTO silicone, PU and hybrid sealants and adhesives are frost-resistant. Depending on the product and raw material base, frost resistance is up to -40 °C. Specific information on storage and temperature stability can be found in the technical data sheet for the respective product.
A joint affected by mould must always be repaired, as there is a risk of damage to the building fabric. Detailed information on this can be found at otto-anti-mould.com.
OTTO silicones OTTOSEAL® S 51, S 54, S 94 and S 495 are tested in accordance with DIN 4102 and, when fully cured, comply with building material class B1 (flame retardant).
The classification according to fire resistance classes refers to a component that has been tested in its entirety. Individual components of building elements, such as adhesives and sealants, are classified according to building material classes and not according to fire resistance classes.